18695979

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 27771120

約数和(自身を除く): 9075141

約数列:

[1, 3, 9, 59, 137, 177, 257, 411, 531, 771, 1233, 2313, 8083, 15163, 24249, 35209, 45489, 72747, 105627, 136467, 316881, 2077331, 6231993, 18695979]

約数ペア:

[(1, 18695979), (3, 6231993), (9, 2077331), (59, 316881), (137, 136467), (177, 105627), (257, 72747), (411, 45489), (531, 35209), (771, 24249), (1233, 15163), (2313, 8083)]