9990903

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 15366400

約数和(自身を除く): 5375497

約数列:

[1, 3, 13, 19, 39, 57, 97, 139, 247, 291, 417, 741, 1261, 1807, 1843, 2641, 3783, 5421, 5529, 7923, 13483, 23959, 34333, 40449, 71877, 102999, 175279, 256177, 525837, 768531, 3330301, 9990903]

約数ペア:

[(1, 9990903), (3, 3330301), (13, 768531), (19, 525837), (39, 256177), (57, 175279), (97, 102999), (139, 71877), (247, 40449), (291, 34333), (417, 23959), (741, 13483), (1261, 7923), (1807, 5529), (1843, 5421), (2641, 3783)]