281516313

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 428366400

約数和(自身を除く): 146850087

約数列:

[1, 3, 13, 37, 39, 43, 111, 129, 169, 349, 481, 507, 559, 1047, 1443, 1591, 1677, 4537, 4773, 6253, 7267, 12913, 13611, 15007, 18759, 20683, 21801, 38739, 45021, 58981, 62049, 167869, 176943, 195091, 268879, 503607, 555259, 585273, 806637, 1665777, 2182297, 2536183, 6546891, 7218367, 7608549, 21655101, 93838771, 281516313]

約数ペア:

[(1, 281516313), (3, 93838771), (13, 21655101), (37, 7608549), (39, 7218367), (43, 6546891), (111, 2536183), (129, 2182297), (169, 1665777), (349, 806637), (481, 585273), (507, 555259), (559, 503607), (1047, 268879), (1443, 195091), (1591, 176943), (1677, 167869), (4537, 62049), (4773, 58981), (6253, 45021), (7267, 38739), (12913, 21801), (13611, 20683), (15007, 18759)]