21810356

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 39092424

約数和(自身を除く): 17282068

約数列:

[1, 2, 4, 73, 113, 146, 226, 292, 452, 661, 1322, 2644, 8249, 16498, 32996, 48253, 74693, 96506, 149386, 193012, 298772, 5452589, 10905178, 21810356]

約数ペア:

[(1, 21810356), (2, 10905178), (4, 5452589), (73, 298772), (113, 193012), (146, 149386), (226, 96506), (292, 74693), (452, 48253), (661, 32996), (1322, 16498), (2644, 8249)]