21819915

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12433}}^1$

素因数の和:12460

約数の個数: 32

約数和(自身を含む): 41778240

約数和(自身を除く): 19958325

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12433, 37299, 62165, 111897, 161629, 186495, 335691, 484887, 559485, 808145, 1454661, 1678455, 2424435, 4363983, 7273305, 21819915]

約数ペア:

[(1, 21819915), (3, 7273305), (5, 4363983), (9, 2424435), (13, 1678455), (15, 1454661), (27, 808145), (39, 559485), (45, 484887), (65, 335691), (117, 186495), (135, 161629), (195, 111897), (351, 62165), (585, 37299), (1755, 12433)]