18121201

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 23328000

約数和(自身を除く): 5206799

約数列:

[1, 7, 17, 29, 59, 89, 119, 203, 413, 493, 623, 1003, 1513, 1711, 2581, 3451, 5251, 7021, 10591, 11977, 18067, 29087, 36757, 43877, 89267, 152279, 203609, 307139, 624869, 1065953, 2588743, 18121201]

約数ペア:

[(1, 18121201), (7, 2588743), (17, 1065953), (29, 624869), (59, 307139), (89, 203609), (119, 152279), (203, 89267), (413, 43877), (493, 36757), (623, 29087), (1003, 18067), (1513, 11977), (1711, 10591), (2581, 7021), (3451, 5251)]