20272203

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2131}}^1$

素因数の和:2295

約数の個数: 24

約数和(自身を含む): 33702656

約数和(自身を除く): 13430453

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2131, 3171, 6393, 9513, 14917, 19179, 44751, 134253, 321781, 965343, 2252467, 2896029, 6757401, 20272203]

約数ペア:

[(1, 20272203), (3, 6757401), (7, 2896029), (9, 2252467), (21, 965343), (63, 321781), (151, 134253), (453, 44751), (1057, 19179), (1359, 14917), (2131, 9513), (3171, 6393)]