21803864

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{563}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 42232320

約数和(自身を除く): 20428456

約数列:

[1, 2, 4, 8, 47, 94, 103, 188, 206, 376, 412, 563, 824, 1126, 2252, 4504, 4841, 9682, 19364, 26461, 38728, 52922, 57989, 105844, 115978, 211688, 231956, 463912, 2725483, 5450966, 10901932, 21803864]

約数ペア:

[(1, 21803864), (2, 10901932), (4, 5450966), (8, 2725483), (47, 463912), (94, 231956), (103, 211688), (188, 115978), (206, 105844), (376, 57989), (412, 52922), (563, 38728), (824, 26461), (1126, 19364), (2252, 9682), (4504, 4841)]