18686565

素因数分解:

$3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1427}}^1$

素因数の和:1538

約数の個数: 32

約数和(自身を含む): 33586560

約数和(自身を除く): 14899995

約数列:

[1, 3, 5, 9, 15, 27, 45, 97, 135, 291, 485, 873, 1427, 1455, 2619, 4281, 4365, 7135, 12843, 13095, 21405, 38529, 64215, 138419, 192645, 415257, 692095, 1245771, 2076285, 3737313, 6228855, 18686565]

約数ペア:

[(1, 18686565), (3, 6228855), (5, 3737313), (9, 2076285), (15, 1245771), (27, 692095), (45, 415257), (97, 192645), (135, 138419), (291, 64215), (485, 38529), (873, 21405), (1427, 13095), (1455, 12843), (2619, 7135), (4281, 4365)]