28640955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{272771}}^1$

素因数の和:272786

約数の個数: 16

約数和(自身を含む): 52372224

約数和(自身を除く): 23731269

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 272771, 818313, 1363855, 1909397, 4091565, 5728191, 9546985, 28640955]

約数ペア:

[(1, 28640955), (3, 9546985), (5, 5728191), (7, 4091565), (15, 1909397), (21, 1363855), (35, 818313), (105, 272771)]