21042956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25171}}^1$

素因数の和:25205

約数の個数: 24

約数和(自身を含む): 42288960

約数和(自身を除く): 21246004

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25171, 50342, 100684, 276881, 478249, 553762, 956498, 1107524, 1912996, 5260739, 10521478, 21042956]

約数ペア:

[(1, 21042956), (2, 10521478), (4, 5260739), (11, 1912996), (19, 1107524), (22, 956498), (38, 553762), (44, 478249), (76, 276881), (209, 100684), (418, 50342), (836, 25171)]