21569690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52609}}^1$

素因数の和:52657

約数の個数: 16

約数和(自身を含む): 39773160

約数和(自身を除く): 18203470

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52609, 105218, 263045, 526090, 2156969, 4313938, 10784845, 21569690]

約数ペア:

[(1, 21569690), (2, 10784845), (5, 4313938), (10, 2156969), (41, 526090), (82, 263045), (205, 105218), (410, 52609)]