21797278

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{1471}}^1$

素因数の和:1743

約数の個数: 16

約数和(自身を含む): 33914880

約数和(自身を除く): 12117602

約数列:

[1, 2, 31, 62, 239, 478, 1471, 2942, 7409, 14818, 45601, 91202, 351569, 703138, 10898639, 21797278]

約数ペア:

[(1, 21797278), (2, 10898639), (31, 703138), (62, 351569), (239, 91202), (478, 45601), (1471, 14818), (2942, 7409)]