64281973

素因数分解:

$7^4\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:722

約数の個数: 20

約数和(自身を含む): 76937868

約数和(自身を除く): 12655895

約数列:

[1, 7, 41, 49, 287, 343, 653, 2009, 2401, 4571, 14063, 26773, 31997, 98441, 187411, 223979, 1311877, 1567853, 9183139, 64281973]

約数ペア:

[(1, 64281973), (7, 9183139), (41, 1567853), (49, 1311877), (287, 223979), (343, 187411), (653, 98441), (2009, 31997), (2401, 26773), (4571, 14063)]