21369974

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4363}}^1$

素因数の和:4475

約数の個数: 16

約数和(自身を含む): 33515520

約数和(自身を除く): 12145546

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4363, 4898, 8726, 135253, 270506, 344677, 689354, 10684987, 21369974]

約数ペア:

[(1, 21369974), (2, 10684987), (31, 689354), (62, 344677), (79, 270506), (158, 135253), (2449, 8726), (4363, 4898)]