20539428

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2687}}^1$

素因数の和:2721

約数の個数: 72

約数和(自身を含む): 60060672

約数和(自身を除く): 39521244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 2687, 3822, 5374, 7644, 8061, 10748, 16122, 18809, 32244, 34931, 37618, 56427, 69862, 75236, 104793, 112854, 131663, 139724, 209586, 225708, 244517, 263326, 394989, 419172, 489034, 526652, 733551, 789978, 978068, 1467102, 1579956, 1711619, 2934204, 3423238, 5134857, 6846476, 10269714, 20539428]

約数ペア:

[(1, 20539428), (2, 10269714), (3, 6846476), (4, 5134857), (6, 3423238), (7, 2934204), (12, 1711619), (13, 1579956), (14, 1467102), (21, 978068), (26, 789978), (28, 733551), (39, 526652), (42, 489034), (49, 419172), (52, 394989), (78, 263326), (84, 244517), (91, 225708), (98, 209586), (147, 139724), (156, 131663), (182, 112854), (196, 104793), (273, 75236), (294, 69862), (364, 56427), (546, 37618), (588, 34931), (637, 32244), (1092, 18809), (1274, 16122), (1911, 10748), (2548, 8061), (2687, 7644), (3822, 5374)]