21007156667

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{48481}}^1$

素因数の和:48771

約数の個数: 24

約数和(自身を含む): 25202882880

約数和(自身を除く): 4195726213

約数列:

[1, 7, 37, 49, 239, 259, 1673, 1813, 8843, 11711, 48481, 61901, 339367, 433307, 1793797, 2375569, 11586959, 12556579, 81108713, 87896053, 428717483, 567760991, 3001022381, 21007156667]

約数ペア:

[(1, 21007156667), (7, 3001022381), (37, 567760991), (49, 428717483), (239, 87896053), (259, 81108713), (1673, 12556579), (1813, 11586959), (8843, 2375569), (11711, 1793797), (48481, 433307), (61901, 339367)]