21145770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4999}}^1$

素因数の和:5059

約数の個数: 48

約数和(自身を含む): 56160000

約数和(自身を除く): 35014230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 90, 94, 141, 235, 282, 423, 470, 705, 846, 1410, 2115, 4230, 4999, 9998, 14997, 24995, 29994, 44991, 49990, 74985, 89982, 149970, 224955, 234953, 449910, 469906, 704859, 1174765, 1409718, 2114577, 2349530, 3524295, 4229154, 7048590, 10572885, 21145770]

約数ペア:

[(1, 21145770), (2, 10572885), (3, 7048590), (5, 4229154), (6, 3524295), (9, 2349530), (10, 2114577), (15, 1409718), (18, 1174765), (30, 704859), (45, 469906), (47, 449910), (90, 234953), (94, 224955), (141, 149970), (235, 89982), (282, 74985), (423, 49990), (470, 44991), (705, 29994), (846, 24995), (1410, 14997), (2115, 9998), (4230, 4999)]