20642844

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{41957}}^1$

素因数の和:42005

約数の個数: 24

約数和(自身を含む): 49342608

約数和(自身を除く): 28699764

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 41957, 83914, 125871, 167828, 251742, 503484, 1720237, 3440474, 5160711, 6880948, 10321422, 20642844]

約数ペア:

[(1, 20642844), (2, 10321422), (3, 6880948), (4, 5160711), (6, 3440474), (12, 1720237), (41, 503484), (82, 251742), (123, 167828), (164, 125871), (246, 83914), (492, 41957)]