21399827

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:334

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 1582573

約数列:

[1, 31, 41, 113, 149, 1271, 3503, 4619, 4633, 6109, 16837, 143623, 189379, 521947, 690317, 21399827]

約数ペア:

[(1, 21399827), (31, 690317), (41, 521947), (113, 189379), (149, 143623), (1271, 16837), (3503, 6109), (4619, 4633)]