18681351

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1483}}^1$

素因数の和:1535

約数の個数: 32

約数和(自身を含む): 29917440

約数和(自身を除く): 11236089

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1483, 4199, 4449, 12597, 19279, 25211, 28177, 57837, 75633, 84531, 327743, 366301, 479009, 983229, 1098903, 1437027, 6227117, 18681351]

約数ペア:

[(1, 18681351), (3, 6227117), (13, 1437027), (17, 1098903), (19, 983229), (39, 479009), (51, 366301), (57, 327743), (221, 84531), (247, 75633), (323, 57837), (663, 28177), (741, 25211), (969, 19279), (1483, 12597), (4199, 4449)]