27951261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 42954240

約数和(自身を除く): 15002979

約数列:

[1, 3, 13, 19, 39, 57, 67, 201, 247, 563, 741, 871, 1273, 1689, 2613, 3819, 7319, 10697, 16549, 21957, 32091, 37721, 49647, 113163, 139061, 417183, 490373, 716699, 1471119, 2150097, 9317087, 27951261]

約数ペア:

[(1, 27951261), (3, 9317087), (13, 2150097), (19, 1471119), (39, 716699), (57, 490373), (67, 417183), (201, 139061), (247, 113163), (563, 49647), (741, 37721), (871, 32091), (1273, 21957), (1689, 16549), (2613, 10697), (3819, 7319)]