20820476

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{631}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 37320864

約数和(自身を除く): 16500388

約数列:

[1, 2, 4, 73, 113, 146, 226, 292, 452, 631, 1262, 2524, 8249, 16498, 32996, 46063, 71303, 92126, 142606, 184252, 285212, 5205119, 10410238, 20820476]

約数ペア:

[(1, 20820476), (2, 10410238), (4, 5205119), (73, 285212), (113, 184252), (146, 142606), (226, 92126), (292, 71303), (452, 46063), (631, 32996), (1262, 16498), (2524, 8249)]