21475070

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{40519}}^1$

素因数の和:40579

約数の個数: 16

約数和(自身を含む): 39385440

約数和(自身を除く): 17910370

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 40519, 81038, 202595, 405190, 2147507, 4295014, 10737535, 21475070]

約数ペア:

[(1, 21475070), (2, 10737535), (5, 4295014), (10, 2147507), (53, 405190), (106, 202595), (265, 81038), (530, 40519)]