217967571

素因数分解:

$3^3\times {\mathrm{419}}^1\times {\mathrm{19267}}^1$

素因数の和:19695

約数の個数: 16

約数和(自身を含む): 323702400

約数和(自身を除く): 105734829

約数列:

[1, 3, 9, 27, 419, 1257, 3771, 11313, 19267, 57801, 173403, 520209, 8072873, 24218619, 72655857, 217967571]

約数ペア:

[(1, 217967571), (3, 72655857), (9, 24218619), (27, 8072873), (419, 520209), (1257, 173403), (3771, 57801), (11313, 19267)]