644397

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 24

約数和(自身を含む): 983808

約数和(自身を除く): 339411

約数列:

[1, 3, 13, 31, 39, 41, 93, 123, 169, 403, 507, 533, 1209, 1271, 1599, 3813, 5239, 6929, 15717, 16523, 20787, 49569, 214799, 644397]

約数ペア:

[(1, 644397), (3, 214799), (13, 49569), (31, 20787), (39, 16523), (41, 15717), (93, 6929), (123, 5239), (169, 3813), (403, 1599), (507, 1271), (533, 1209)]