21723840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:439

約数の個数: 168

約数和(自身を含む): 78851760

約数和(自身を除く): 57127920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 192, 228, 240, 285, 288, 304, 320, 342, 360, 380, 397, 456, 480, 570, 576, 608, 684, 720, 760, 794, 855, 912, 960, 1140, 1191, 1216, 1368, 1440, 1520, 1588, 1710, 1824, 1985, 2280, 2382, 2736, 2880, 3040, 3176, 3420, 3573, 3648, 3970, 4560, 4764, 5472, 5955, 6080, 6352, 6840, 7146, 7543, 7940, 9120, 9528, 10944, 11910, 12704, 13680, 14292, 15086, 15880, 17865, 18240, 19056, 22629, 23820, 25408, 27360, 28584, 30172, 31760, 35730, 37715, 38112, 45258, 47640, 54720, 57168, 60344, 63520, 67887, 71460, 75430, 76224, 90516, 95280, 113145, 114336, 120688, 127040, 135774, 142920, 150860, 181032, 190560, 226290, 228672, 241376, 271548, 285840, 301720, 339435, 362064, 381120, 452580, 482752, 543096, 571680, 603440, 678870, 724128, 905160, 1086192, 1143360, 1206880, 1357740, 1448256, 1810320, 2172384, 2413760, 2715480, 3620640, 4344768, 5430960, 7241280, 10861920, 21723840]

約数ペア:

[(1, 21723840), (2, 10861920), (3, 7241280), (4, 5430960), (5, 4344768), (6, 3620640), (8, 2715480), (9, 2413760), (10, 2172384), (12, 1810320), (15, 1448256), (16, 1357740), (18, 1206880), (19, 1143360), (20, 1086192), (24, 905160), (30, 724128), (32, 678870), (36, 603440), (38, 571680), (40, 543096), (45, 482752), (48, 452580), (57, 381120), (60, 362064), (64, 339435), (72, 301720), (76, 285840), (80, 271548), (90, 241376), (95, 228672), (96, 226290), (114, 190560), (120, 181032), (144, 150860), (152, 142920), (160, 135774), (171, 127040), (180, 120688), (190, 114336), (192, 113145), (228, 95280), (240, 90516), (285, 76224), (288, 75430), (304, 71460), (320, 67887), (342, 63520), (360, 60344), (380, 57168), (397, 54720), (456, 47640), (480, 45258), (570, 38112), (576, 37715), (608, 35730), (684, 31760), (720, 30172), (760, 28584), (794, 27360), (855, 25408), (912, 23820), (960, 22629), (1140, 19056), (1191, 18240), (1216, 17865), (1368, 15880), (1440, 15086), (1520, 14292), (1588, 13680), (1710, 12704), (1824, 11910), (1985, 10944), (2280, 9528), (2382, 9120), (2736, 7940), (2880, 7543), (3040, 7146), (3176, 6840), (3420, 6352), (3573, 6080), (3648, 5955), (3970, 5472), (4560, 4764)]