21994360

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{2029}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 49694400

約数和(自身を除く): 27700040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2029, 2168, 2710, 4058, 5420, 8116, 10145, 10840, 16232, 20290, 40580, 81160, 549859, 1099718, 2199436, 2749295, 4398872, 5498590, 10997180, 21994360]

約数ペア:

[(1, 21994360), (2, 10997180), (4, 5498590), (5, 4398872), (8, 2749295), (10, 2199436), (20, 1099718), (40, 549859), (271, 81160), (542, 40580), (1084, 20290), (1355, 16232), (2029, 10840), (2168, 10145), (2710, 8116), (4058, 5420)]