21572160

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1020

約数の個数: 112

約数和(自身を含む): 71542656

約数和(自身を除く): 49970496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 460, 480, 552, 690, 736, 920, 960, 977, 1104, 1380, 1472, 1840, 1954, 2208, 2760, 2931, 3680, 3908, 4416, 4885, 5520, 5862, 7360, 7816, 9770, 11040, 11724, 14655, 15632, 19540, 22080, 22471, 23448, 29310, 31264, 39080, 44942, 46896, 58620, 62528, 67413, 78160, 89884, 93792, 112355, 117240, 134826, 156320, 179768, 187584, 224710, 234480, 269652, 312640, 337065, 359536, 449420, 468960, 539304, 674130, 719072, 898840, 937920, 1078608, 1348260, 1438144, 1797680, 2157216, 2696520, 3595360, 4314432, 5393040, 7190720, 10786080, 21572160]

約数ペア:

[(1, 21572160), (2, 10786080), (3, 7190720), (4, 5393040), (5, 4314432), (6, 3595360), (8, 2696520), (10, 2157216), (12, 1797680), (15, 1438144), (16, 1348260), (20, 1078608), (23, 937920), (24, 898840), (30, 719072), (32, 674130), (40, 539304), (46, 468960), (48, 449420), (60, 359536), (64, 337065), (69, 312640), (80, 269652), (92, 234480), (96, 224710), (115, 187584), (120, 179768), (138, 156320), (160, 134826), (184, 117240), (192, 112355), (230, 93792), (240, 89884), (276, 78160), (320, 67413), (345, 62528), (368, 58620), (460, 46896), (480, 44942), (552, 39080), (690, 31264), (736, 29310), (920, 23448), (960, 22471), (977, 22080), (1104, 19540), (1380, 15632), (1472, 14655), (1840, 11724), (1954, 11040), (2208, 9770), (2760, 7816), (2931, 7360), (3680, 5862), (3908, 5520), (4416, 4885)]