21631940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98327}}^1$

素因数の和:98347

約数の個数: 24

約数和(自身を含む): 49557312

約数和(自身を除く): 27925372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98327, 196654, 393308, 491635, 983270, 1081597, 1966540, 2163194, 4326388, 5407985, 10815970, 21631940]

約数ペア:

[(1, 21631940), (2, 10815970), (4, 5407985), (5, 4326388), (10, 2163194), (11, 1966540), (20, 1081597), (22, 983270), (44, 491635), (55, 393308), (110, 196654), (220, 98327)]