21145406

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1\times {\mathrm{491}}^1$

素因数の和:907

約数の個数: 16

約数和(自身を含む): 32395248

約数和(自身を除く): 11249842

約数列:

[1, 2, 61, 122, 353, 491, 706, 982, 21533, 29951, 43066, 59902, 173323, 346646, 10572703, 21145406]

約数ペア:

[(1, 21145406), (2, 10572703), (61, 346646), (122, 173323), (353, 59902), (491, 43066), (706, 29951), (982, 21533)]