21066240

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:250

約数の個数: 160

約数和(自身を含む): 72870336

約数和(自身を除く): 51804096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 211, 240, 256, 260, 312, 320, 384, 390, 416, 422, 480, 512, 520, 624, 633, 640, 768, 780, 832, 844, 960, 1040, 1055, 1248, 1266, 1280, 1536, 1560, 1664, 1688, 1920, 2080, 2110, 2496, 2532, 2560, 2743, 3120, 3165, 3328, 3376, 3840, 4160, 4220, 4992, 5064, 5486, 6240, 6330, 6656, 6752, 7680, 8229, 8320, 8440, 9984, 10128, 10972, 12480, 12660, 13504, 13715, 16458, 16640, 16880, 19968, 20256, 21944, 24960, 25320, 27008, 27430, 32916, 33280, 33760, 40512, 41145, 43888, 49920, 50640, 54016, 54860, 65832, 67520, 81024, 82290, 87776, 99840, 101280, 108032, 109720, 131664, 135040, 162048, 164580, 175552, 202560, 219440, 263328, 270080, 324096, 329160, 351104, 405120, 438880, 526656, 540160, 658320, 702208, 810240, 877760, 1053312, 1316640, 1404416, 1620480, 1755520, 2106624, 2633280, 3511040, 4213248, 5266560, 7022080, 10533120, 21066240]

約数ペア:

[(1, 21066240), (2, 10533120), (3, 7022080), (4, 5266560), (5, 4213248), (6, 3511040), (8, 2633280), (10, 2106624), (12, 1755520), (13, 1620480), (15, 1404416), (16, 1316640), (20, 1053312), (24, 877760), (26, 810240), (30, 702208), (32, 658320), (39, 540160), (40, 526656), (48, 438880), (52, 405120), (60, 351104), (64, 329160), (65, 324096), (78, 270080), (80, 263328), (96, 219440), (104, 202560), (120, 175552), (128, 164580), (130, 162048), (156, 135040), (160, 131664), (192, 109720), (195, 108032), (208, 101280), (211, 99840), (240, 87776), (256, 82290), (260, 81024), (312, 67520), (320, 65832), (384, 54860), (390, 54016), (416, 50640), (422, 49920), (480, 43888), (512, 41145), (520, 40512), (624, 33760), (633, 33280), (640, 32916), (768, 27430), (780, 27008), (832, 25320), (844, 24960), (960, 21944), (1040, 20256), (1055, 19968), (1248, 16880), (1266, 16640), (1280, 16458), (1536, 13715), (1560, 13504), (1664, 12660), (1688, 12480), (1920, 10972), (2080, 10128), (2110, 9984), (2496, 8440), (2532, 8320), (2560, 8229), (2743, 7680), (3120, 6752), (3165, 6656), (3328, 6330), (3376, 6240), (3840, 5486), (4160, 5064), (4220, 4992)]