21939840

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:331

約数の個数: 192

約数和(自身を含む): 81867240

約数和(自身を除く): 59927400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 293, 312, 320, 360, 384, 390, 416, 468, 480, 520, 576, 585, 586, 624, 640, 720, 780, 832, 879, 936, 960, 1040, 1152, 1170, 1172, 1248, 1440, 1465, 1560, 1664, 1758, 1872, 1920, 2080, 2340, 2344, 2496, 2637, 2880, 2930, 3120, 3516, 3744, 3809, 4160, 4395, 4680, 4688, 4992, 5274, 5760, 5860, 6240, 7032, 7488, 7618, 8320, 8790, 9360, 9376, 10548, 11427, 11720, 12480, 13185, 14064, 14976, 15236, 17580, 18720, 18752, 19045, 21096, 22854, 23440, 24960, 26370, 28128, 30472, 34281, 35160, 37440, 37504, 38090, 42192, 45708, 46880, 52740, 56256, 57135, 60944, 68562, 70320, 74880, 76180, 84384, 91416, 93760, 105480, 112512, 114270, 121888, 137124, 140640, 152360, 168768, 171405, 182832, 187520, 210960, 228540, 243776, 274248, 281280, 304720, 337536, 342810, 365664, 421920, 457080, 487552, 548496, 562560, 609440, 685620, 731328, 843840, 914160, 1096992, 1218880, 1371240, 1462656, 1687680, 1828320, 2193984, 2437760, 2742480, 3656640, 4387968, 5484960, 7313280, 10969920, 21939840]

約数ペア:

[(1, 21939840), (2, 10969920), (3, 7313280), (4, 5484960), (5, 4387968), (6, 3656640), (8, 2742480), (9, 2437760), (10, 2193984), (12, 1828320), (13, 1687680), (15, 1462656), (16, 1371240), (18, 1218880), (20, 1096992), (24, 914160), (26, 843840), (30, 731328), (32, 685620), (36, 609440), (39, 562560), (40, 548496), (45, 487552), (48, 457080), (52, 421920), (60, 365664), (64, 342810), (65, 337536), (72, 304720), (78, 281280), (80, 274248), (90, 243776), (96, 228540), (104, 210960), (117, 187520), (120, 182832), (128, 171405), (130, 168768), (144, 152360), (156, 140640), (160, 137124), (180, 121888), (192, 114270), (195, 112512), (208, 105480), (234, 93760), (240, 91416), (260, 84384), (288, 76180), (293, 74880), (312, 70320), (320, 68562), (360, 60944), (384, 57135), (390, 56256), (416, 52740), (468, 46880), (480, 45708), (520, 42192), (576, 38090), (585, 37504), (586, 37440), (624, 35160), (640, 34281), (720, 30472), (780, 28128), (832, 26370), (879, 24960), (936, 23440), (960, 22854), (1040, 21096), (1152, 19045), (1170, 18752), (1172, 18720), (1248, 17580), (1440, 15236), (1465, 14976), (1560, 14064), (1664, 13185), (1758, 12480), (1872, 11720), (1920, 11427), (2080, 10548), (2340, 9376), (2344, 9360), (2496, 8790), (2637, 8320), (2880, 7618), (2930, 7488), (3120, 7032), (3516, 6240), (3744, 5860), (3809, 5760), (4160, 5274), (4395, 4992), (4680, 4688)]