20854278

素因数分解:

$2^1\times 3^2\times {\mathrm{101}}^1\times {\mathrm{11471}}^1$

素因数の和:11580

約数の個数: 24

約数和(自身を含む): 45635616

約数和(自身を除く): 24781338

約数列:

[1, 2, 3, 6, 9, 18, 101, 202, 303, 606, 909, 1818, 11471, 22942, 34413, 68826, 103239, 206478, 1158571, 2317142, 3475713, 6951426, 10427139, 20854278]

約数ペア:

[(1, 20854278), (2, 10427139), (3, 6951426), (6, 3475713), (9, 2317142), (18, 1158571), (101, 206478), (202, 103239), (303, 68826), (606, 34413), (909, 22942), (1818, 11471)]