21210422

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2503}}^1$

素因数の和:2747

約数の個数: 16

約数和(自身を含む): 33653760

約数和(自身を除く): 12443338

約数列:

[1, 2, 19, 38, 223, 446, 2503, 4237, 5006, 8474, 47557, 95114, 558169, 1116338, 10605211, 21210422]

約数ペア:

[(1, 21210422), (2, 10605211), (19, 1116338), (38, 558169), (223, 95114), (446, 47557), (2503, 8474), (4237, 5006)]