21094798641

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{577639}}^1$

素因数の和:577733

約数の個数: 32

約数和(自身を含む): 33715691520

約数和(自身を除く): 12620892879

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 777, 987, 1739, 5217, 12173, 36519, 577639, 1732917, 4043473, 12130419, 21372643, 27149033, 64117929, 81447099, 149608501, 190043231, 448825503, 570129693, 1004514221, 3013542663, 7031599547, 21094798641]

約数ペア:

[(1, 21094798641), (3, 7031599547), (7, 3013542663), (21, 1004514221), (37, 570129693), (47, 448825503), (111, 190043231), (141, 149608501), (259, 81447099), (329, 64117929), (777, 27149033), (987, 21372643), (1739, 12130419), (5217, 4043473), (12173, 1732917), (36519, 577639)]