291219448

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{215399}}^1$

素因数の和:215431

約数の個数: 24

約数和(自身を含む): 591273000

約数和(自身を除く): 300053552

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 215399, 430798, 861596, 1723192, 2800187, 5600374, 11200748, 22401496, 36402431, 72804862, 145609724, 291219448]

約数ペア:

[(1, 291219448), (2, 145609724), (4, 72804862), (8, 36402431), (13, 22401496), (26, 11200748), (52, 5600374), (104, 2800187), (169, 1723192), (338, 861596), (676, 430798), (1352, 215399)]