21285130

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3863}}^1$

素因数の和:3918

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20446070

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2755, 3863, 5510, 7726, 19315, 38630, 73397, 112027, 146794, 224054, 366985, 560135, 733970, 1120270, 2128513, 4257026, 10642565, 21285130]

約数ペア:

[(1, 21285130), (2, 10642565), (5, 4257026), (10, 2128513), (19, 1120270), (29, 733970), (38, 560135), (58, 366985), (95, 224054), (145, 146794), (190, 112027), (290, 73397), (551, 38630), (1102, 19315), (2755, 7726), (3863, 5510)]