21451778

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{2861}}^1$

素因数の和:3049

約数の個数: 16

約数和(自身を含む): 33794496

約数和(自身を除く): 12342718

約数列:

[1, 2, 23, 46, 163, 326, 2861, 3749, 5722, 7498, 65803, 131606, 466343, 932686, 10725889, 21451778]

約数ペア:

[(1, 21451778), (2, 10725889), (23, 932686), (46, 466343), (163, 131606), (326, 65803), (2861, 7498), (3749, 5722)]