21268556

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{90121}}^1$

素因数の和:90184

約数の個数: 12

約数和(自身を含む): 37851240

約数和(自身を除く): 16582684

約数列:

[1, 2, 4, 59, 118, 236, 90121, 180242, 360484, 5317139, 10634278, 21268556]

約数ペア:

[(1, 21268556), (2, 10634278), (4, 5317139), (59, 360484), (118, 180242), (236, 90121)]