20125913

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 21903360

約数和(自身を除く): 1777447

約数列:

[1, 29, 31, 61, 367, 899, 1769, 1891, 10643, 11377, 22387, 54839, 329933, 649223, 693997, 20125913]

約数ペア:

[(1, 20125913), (29, 693997), (31, 649223), (61, 329933), (367, 54839), (899, 22387), (1769, 11377), (1891, 10643)]