20958795

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3257}}^1$

素因数の和:3292

約数の個数: 48

約数和(自身を含む): 42692832

約数和(自身を除く): 21734037

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 143, 165, 195, 429, 495, 585, 715, 1287, 2145, 3257, 6435, 9771, 16285, 29313, 35827, 42341, 48855, 107481, 127023, 146565, 179135, 211705, 322443, 381069, 465751, 537405, 635115, 1397253, 1612215, 1905345, 2328755, 4191759, 6986265, 20958795]

約数ペア:

[(1, 20958795), (3, 6986265), (5, 4191759), (9, 2328755), (11, 1905345), (13, 1612215), (15, 1397253), (33, 635115), (39, 537405), (45, 465751), (55, 381069), (65, 322443), (99, 211705), (117, 179135), (143, 146565), (165, 127023), (195, 107481), (429, 48855), (495, 42341), (585, 35827), (715, 29313), (1287, 16285), (2145, 9771), (3257, 6435)]