20860365

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 34845696

約数和(自身を除く): 13985331

約数列:

[1, 3, 5, 15, 31, 93, 113, 155, 339, 397, 465, 565, 1191, 1695, 1985, 3503, 5955, 10509, 12307, 17515, 36921, 44861, 52545, 61535, 134583, 184605, 224305, 672915, 1390691, 4172073, 6953455, 20860365]

約数ペア:

[(1, 20860365), (3, 6953455), (5, 4172073), (15, 1390691), (31, 672915), (93, 224305), (113, 184605), (155, 134583), (339, 61535), (397, 52545), (465, 44861), (565, 36921), (1191, 17515), (1695, 12307), (1985, 10509), (3503, 5955)]