21160778

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{5981}}^1$

素因数の和:6073

約数の個数: 16

約数和(自身を含む): 33379560

約数和(自身を除く): 12218782

約数列:

[1, 2, 29, 58, 61, 122, 1769, 3538, 5981, 11962, 173449, 346898, 364841, 729682, 10580389, 21160778]

約数ペア:

[(1, 21160778), (2, 10580389), (29, 729682), (58, 364841), (61, 346898), (122, 173449), (1769, 11962), (3538, 5981)]