218755721

素因数分解:

${\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1\times {\mathrm{491}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 233798400

約数和(自身を除く): 15042679

約数列:

[1, 19, 131, 179, 491, 2489, 3401, 9329, 23449, 64321, 87889, 445531, 1222099, 1669891, 11513459, 218755721]

約数ペア:

[(1, 218755721), (19, 11513459), (131, 1669891), (179, 1222099), (491, 445531), (2489, 87889), (3401, 64321), (9329, 23449)]