21049138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{20357}}^1$

素因数の和:20417

約数の個数: 16

約数和(自身を含む): 35178624

約数和(自身を除く): 14129486

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 20357, 40714, 223927, 447854, 956779, 1913558, 10524569, 21049138]

約数ペア:

[(1, 21049138), (2, 10524569), (11, 1913558), (22, 956779), (47, 447854), (94, 223927), (517, 40714), (1034, 20357)]