21860545

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 10211135

約数列:

[1, 5, 7, 19, 35, 71, 95, 133, 355, 463, 497, 665, 1349, 2315, 2485, 3241, 6745, 8797, 9443, 16205, 32873, 43985, 47215, 61579, 164365, 230111, 307895, 624587, 1150555, 3122935, 4372109, 21860545]

約数ペア:

[(1, 21860545), (5, 4372109), (7, 3122935), (19, 1150555), (35, 624587), (71, 307895), (95, 230111), (133, 164365), (355, 61579), (463, 47215), (497, 43985), (665, 32873), (1349, 16205), (2315, 9443), (2485, 8797), (3241, 6745)]