21779530

素因数分解:

$2^1\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2243}}^1$

素因数の和:3221

約数の個数: 16

約数和(自身を含む): 39261024

約数和(自身を除く): 17481494

約数列:

[1, 2, 5, 10, 971, 1942, 2243, 4486, 4855, 9710, 11215, 22430, 2177953, 4355906, 10889765, 21779530]

約数ペア:

[(1, 21779530), (2, 10889765), (5, 4355906), (10, 2177953), (971, 22430), (1942, 11215), (2243, 9710), (4486, 4855)]