21401040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3877}}^1$

素因数の和:3916

約数の個数: 80

約数和(自身を含む): 69245568

約数和(自身を除く): 47844528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3877, 5520, 7754, 11631, 15508, 19385, 23262, 31016, 38770, 46524, 58155, 62032, 77540, 89171, 93048, 116310, 155080, 178342, 186096, 232620, 267513, 310160, 356684, 445855, 465240, 535026, 713368, 891710, 930480, 1070052, 1337565, 1426736, 1783420, 2140104, 2675130, 3566840, 4280208, 5350260, 7133680, 10700520, 21401040]

約数ペア:

[(1, 21401040), (2, 10700520), (3, 7133680), (4, 5350260), (5, 4280208), (6, 3566840), (8, 2675130), (10, 2140104), (12, 1783420), (15, 1426736), (16, 1337565), (20, 1070052), (23, 930480), (24, 891710), (30, 713368), (40, 535026), (46, 465240), (48, 445855), (60, 356684), (69, 310160), (80, 267513), (92, 232620), (115, 186096), (120, 178342), (138, 155080), (184, 116310), (230, 93048), (240, 89171), (276, 77540), (345, 62032), (368, 58155), (460, 46524), (552, 38770), (690, 31016), (920, 23262), (1104, 19385), (1380, 15508), (1840, 11631), (2760, 7754), (3877, 5520)]