207943684

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{307609}}^1$

素因数の和:307639

約数の個数: 18

約数和(自身を含む): 394048410

約数和(自身を除く): 186104726

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 307609, 615218, 1230436, 3998917, 7997834, 15995668, 51985921, 103971842, 207943684]

約数ペア:

[(1, 207943684), (2, 103971842), (4, 51985921), (13, 15995668), (26, 7997834), (52, 3998917), (169, 1230436), (338, 615218), (676, 307609)]