20017221

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{32869}}^1$

素因数の和:32908

約数の個数: 16

約数和(自身を含む): 31555200

約数和(自身を除く): 11537979

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 32869, 98607, 230083, 690249, 953201, 2859603, 6672407, 20017221]

約数ペア:

[(1, 20017221), (3, 6672407), (7, 2859603), (21, 953201), (29, 690249), (87, 230083), (203, 98607), (609, 32869)]