128858401

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{5419}}^1$

素因数の和:5548

約数の個数: 16

約数和(自身を含む): 152627200

約数和(自身を除く): 23768799

約数列:

[1, 7, 43, 79, 301, 553, 3397, 5419, 23779, 37933, 233017, 428101, 1631119, 2996707, 18408343, 128858401]

約数ペア:

[(1, 128858401), (7, 18408343), (43, 2996707), (79, 1631119), (301, 428101), (553, 233017), (3397, 37933), (5419, 23779)]