21457986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2339}}^1$

素因数の和:2494

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 25716414

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 139, 278, 417, 834, 1529, 2339, 3058, 4587, 4678, 7017, 9174, 14034, 25729, 51458, 77187, 154374, 325121, 650242, 975363, 1950726, 3576331, 7152662, 10728993, 21457986]

約数ペア:

[(1, 21457986), (2, 10728993), (3, 7152662), (6, 3576331), (11, 1950726), (22, 975363), (33, 650242), (66, 325121), (139, 154374), (278, 77187), (417, 51458), (834, 25729), (1529, 14034), (2339, 9174), (3058, 7017), (4587, 4678)]