20996856195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{15737}}^1$

素因数の和:15980

約数の個数: 64

約数和(自身を含む): 39088659456

約数和(自身を除く): 18091803261

約数列:

[1, 3, 5, 7, 15, 21, 35, 97, 105, 131, 291, 393, 485, 655, 679, 917, 1455, 1965, 2037, 2751, 3395, 4585, 10185, 12707, 13755, 15737, 38121, 47211, 63535, 78685, 88949, 110159, 190605, 236055, 266847, 330477, 444745, 550795, 1334235, 1526489, 1652385, 2061547, 4579467, 6184641, 7632445, 10307735, 10685423, 14430829, 22897335, 30923205, 32056269, 43292487, 53427115, 72154145, 160281345, 199970059, 216462435, 599910177, 999850295, 1399790413, 2999550885, 4199371239, 6998952065, 20996856195]

約数ペア:

[(1, 20996856195), (3, 6998952065), (5, 4199371239), (7, 2999550885), (15, 1399790413), (21, 999850295), (35, 599910177), (97, 216462435), (105, 199970059), (131, 160281345), (291, 72154145), (393, 53427115), (485, 43292487), (655, 32056269), (679, 30923205), (917, 22897335), (1455, 14430829), (1965, 10685423), (2037, 10307735), (2751, 7632445), (3395, 6184641), (4585, 4579467), (10185, 2061547), (12707, 1652385), (13755, 1526489), (15737, 1334235), (38121, 550795), (47211, 444745), (63535, 330477), (78685, 266847), (88949, 236055), (110159, 190605)]