21563385

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2609}}^1$

素因数の和:2665

約数の個数: 32

約数和(自身を含む): 37584000

約数和(自身を除く): 16020615

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2609, 2755, 7827, 8265, 13045, 39135, 49571, 75661, 148713, 226983, 247855, 378305, 743565, 1134915, 1437559, 4312677, 7187795, 21563385]

約数ペア:

[(1, 21563385), (3, 7187795), (5, 4312677), (15, 1437559), (19, 1134915), (29, 743565), (57, 378305), (87, 247855), (95, 226983), (145, 148713), (285, 75661), (435, 49571), (551, 39135), (1653, 13045), (2609, 8265), (2755, 7827)]