18686451

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{3079}}^1$

素因数の和:3123

約数の個数: 24

約数和(自身を含む): 30257920

約数和(自身を除く): 11571469

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 3079, 6069, 9237, 21553, 52343, 64659, 157029, 366401, 889831, 1099203, 2669493, 6228817, 18686451]

約数ペア:

[(1, 18686451), (3, 6228817), (7, 2669493), (17, 1099203), (21, 889831), (51, 366401), (119, 157029), (289, 64659), (357, 52343), (867, 21553), (2023, 9237), (3079, 6069)]