18086224

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{977}}^1$

素因数の和:1087

約数の個数: 40

約数和(自身を含む): 38200680

約数和(自身を除く): 20114456

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 977, 1157, 1424, 1954, 2314, 3908, 4628, 7816, 9256, 12701, 15632, 18512, 25402, 50804, 86953, 101608, 173906, 203216, 347812, 695624, 1130389, 1391248, 2260778, 4521556, 9043112, 18086224]

約数ペア:

[(1, 18086224), (2, 9043112), (4, 4521556), (8, 2260778), (13, 1391248), (16, 1130389), (26, 695624), (52, 347812), (89, 203216), (104, 173906), (178, 101608), (208, 86953), (356, 50804), (712, 25402), (977, 18512), (1157, 15632), (1424, 12701), (1954, 9256), (2314, 7816), (3908, 4628)]