21458012

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{315559}}^1$

素因数の和:315580

約数の個数: 12

約数和(自身を含む): 39760560

約数和(自身を除く): 18302548

約数列:

[1, 2, 4, 17, 34, 68, 315559, 631118, 1262236, 5364503, 10729006, 21458012]

約数ペア:

[(1, 21458012), (2, 10729006), (4, 5364503), (17, 1262236), (34, 631118), (68, 315559)]