21344456

素因数分解:

$2^3\times 7^1\times {\mathrm{563}}^1\times {\mathrm{677}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 45887040

約数和(自身を除く): 24542584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 563, 677, 1126, 1354, 2252, 2708, 3941, 4504, 4739, 5416, 7882, 9478, 15764, 18956, 31528, 37912, 381151, 762302, 1524604, 2668057, 3049208, 5336114, 10672228, 21344456]

約数ペア:

[(1, 21344456), (2, 10672228), (4, 5336114), (7, 3049208), (8, 2668057), (14, 1524604), (28, 762302), (56, 381151), (563, 37912), (677, 31528), (1126, 18956), (1354, 15764), (2252, 9478), (2708, 7882), (3941, 5416), (4504, 4739)]