31129239

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 45875200

約数和(自身を除く): 14745961

約数列:

[1, 3, 19, 31, 57, 79, 93, 223, 237, 589, 669, 1501, 1767, 2449, 4237, 4503, 6913, 7347, 12711, 17617, 20739, 46531, 52851, 131347, 139593, 334723, 394041, 546127, 1004169, 1638381, 10376413, 31129239]

約数ペア:

[(1, 31129239), (3, 10376413), (19, 1638381), (31, 1004169), (57, 546127), (79, 394041), (93, 334723), (223, 139593), (237, 131347), (589, 52851), (669, 46531), (1501, 20739), (1767, 17617), (2449, 12711), (4237, 7347), (4503, 6913)]