20872605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3691}}^1$

素因数の和:3741

約数の個数: 32

約数和(自身を含む): 37215360

約数和(自身を除く): 16342755

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 195, 377, 435, 1131, 1885, 3691, 5655, 11073, 18455, 47983, 55365, 107039, 143949, 239915, 321117, 535195, 719745, 1391507, 1605585, 4174521, 6957535, 20872605]

約数ペア:

[(1, 20872605), (3, 6957535), (5, 4174521), (13, 1605585), (15, 1391507), (29, 719745), (39, 535195), (65, 321117), (87, 239915), (145, 143949), (195, 107039), (377, 55365), (435, 47983), (1131, 18455), (1885, 11073), (3691, 5655)]