21028462

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2687}}^1$

素因数の和:2752

約数の個数: 32

約数和(自身を含む): 39739392

約数和(自身を除く): 18710930

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 2687, 3913, 5374, 7826, 18809, 34931, 37618, 69862, 115541, 231082, 244517, 489034, 808787, 1502033, 1617574, 3004066, 10514231, 21028462]

約数ペア:

[(1, 21028462), (2, 10514231), (7, 3004066), (13, 1617574), (14, 1502033), (26, 808787), (43, 489034), (86, 244517), (91, 231082), (182, 115541), (301, 69862), (559, 37618), (602, 34931), (1118, 18809), (2687, 7826), (3913, 5374)]