20861685

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11887}}^1$

素因数の和:11914

約数の個数: 32

約数和(自身を含む): 39943680

約数和(自身を除く): 19081995

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11887, 35661, 59435, 106983, 154531, 178305, 320949, 463593, 534915, 772655, 1390779, 1604745, 2317965, 4172337, 6953895, 20861685]

約数ペア:

[(1, 20861685), (3, 6953895), (5, 4172337), (9, 2317965), (13, 1604745), (15, 1390779), (27, 772655), (39, 534915), (45, 463593), (65, 320949), (117, 178305), (135, 154531), (195, 106983), (351, 59435), (585, 35661), (1755, 11887)]