248970813

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6857}}^1$

素因数の和:6906

約数の個数: 48

約数和(自身を含む): 437814720

約数和(自身を除く): 188843907

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 637, 741, 931, 1729, 1911, 2793, 5187, 6857, 12103, 20571, 36309, 47999, 89141, 130283, 143997, 267423, 335993, 390849, 623987, 911981, 1007979, 1693679, 1871961, 2735943, 4367909, 5081037, 6383867, 11855753, 13103727, 19151601, 35567259, 82990271, 248970813]

約数ペア:

[(1, 248970813), (3, 82990271), (7, 35567259), (13, 19151601), (19, 13103727), (21, 11855753), (39, 6383867), (49, 5081037), (57, 4367909), (91, 2735943), (133, 1871961), (147, 1693679), (247, 1007979), (273, 911981), (399, 623987), (637, 390849), (741, 335993), (931, 267423), (1729, 143997), (1911, 130283), (2793, 89141), (5187, 47999), (6857, 36309), (12103, 20571)]