21560456

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{467}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 42120000

約数和(自身を除く): 20559544

約数列:

[1, 2, 4, 8, 29, 58, 116, 199, 232, 398, 467, 796, 934, 1592, 1868, 3736, 5771, 11542, 13543, 23084, 27086, 46168, 54172, 92933, 108344, 185866, 371732, 743464, 2695057, 5390114, 10780228, 21560456]

約数ペア:

[(1, 21560456), (2, 10780228), (4, 5390114), (8, 2695057), (29, 743464), (58, 371732), (116, 185866), (199, 108344), (232, 92933), (398, 54172), (467, 46168), (796, 27086), (934, 23084), (1592, 13543), (1868, 11542), (3736, 5771)]