21305360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11579}}^1$

素因数の和:11615

約数の個数: 40

約数和(自身を含む): 51693120

約数和(自身を除く): 30387760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11579, 23158, 46316, 57895, 92632, 115790, 185264, 231580, 266317, 463160, 532634, 926320, 1065268, 1331585, 2130536, 2663170, 4261072, 5326340, 10652680, 21305360]

約数ペア:

[(1, 21305360), (2, 10652680), (4, 5326340), (5, 4261072), (8, 2663170), (10, 2130536), (16, 1331585), (20, 1065268), (23, 926320), (40, 532634), (46, 463160), (80, 266317), (92, 231580), (115, 185264), (184, 115790), (230, 92632), (368, 57895), (460, 46316), (920, 23158), (1840, 11579)]