21903416

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51659}}^1$

素因数の和:51718

約数の個数: 16

約数和(自身を含む): 41844600

約数和(自身を除く): 19941184

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51659, 103318, 206636, 413272, 2737927, 5475854, 10951708, 21903416]

約数ペア:

[(1, 21903416), (2, 10951708), (4, 5475854), (8, 2737927), (53, 413272), (106, 206636), (212, 103318), (424, 51659)]