2021656316

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{1400039}}^1$

素因数の和:1400081

約数の個数: 18

約数和(自身を含む): 3733906680

約数和(自身を除く): 1712250364

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 1400039, 2800078, 5600156, 26600741, 53201482, 106402964, 505414079, 1010828158, 2021656316]

約数ペア:

[(1, 2021656316), (2, 1010828158), (4, 505414079), (19, 106402964), (38, 53201482), (76, 26600741), (361, 5600156), (722, 2800078), (1444, 1400039)]