21456942

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1151}}^1$

素因数の和:1408

約数の個数: 32

約数和(自身を含む): 46448640

約数和(自身を除く): 24991698

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 239, 478, 717, 1151, 1434, 2302, 3107, 3453, 6214, 6906, 9321, 14963, 18642, 29926, 44889, 89778, 275089, 550178, 825267, 1650534, 3576157, 7152314, 10728471, 21456942]

約数ペア:

[(1, 21456942), (2, 10728471), (3, 7152314), (6, 3576157), (13, 1650534), (26, 825267), (39, 550178), (78, 275089), (239, 89778), (478, 44889), (717, 29926), (1151, 18642), (1434, 14963), (2302, 9321), (3107, 6906), (3453, 6214)]