21005450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{22111}}^1$

素因数の和:22142

約数の個数: 24

約数和(自身を含む): 41128320

約数和(自身を除く): 20122870

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 22111, 44222, 110555, 221110, 420109, 552775, 840218, 1105550, 2100545, 4201090, 10502725, 21005450]

約数ペア:

[(1, 21005450), (2, 10502725), (5, 4201090), (10, 2100545), (19, 1105550), (25, 840218), (38, 552775), (50, 420109), (95, 221110), (190, 110555), (475, 44222), (950, 22111)]