289307511

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 435321600

約数和(自身を除く): 146014089

約数列:

[1, 3, 9, 27, 139, 157, 417, 471, 491, 1251, 1413, 1473, 3753, 4239, 4419, 13257, 21823, 65469, 68249, 77087, 196407, 204747, 231261, 589221, 614241, 693783, 1842723, 2081349, 10715093, 32145279, 96435837, 289307511]

約数ペア:

[(1, 289307511), (3, 96435837), (9, 32145279), (27, 10715093), (139, 2081349), (157, 1842723), (417, 693783), (471, 614241), (491, 589221), (1251, 231261), (1413, 204747), (1473, 196407), (3753, 77087), (4239, 68249), (4419, 65469), (13257, 21823)]