21956625

素因数分解:

$3^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{673}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 41006160

約数和(自身を除く): 19049535

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 125, 145, 225, 261, 375, 435, 673, 725, 1125, 1305, 2019, 2175, 3365, 3625, 6057, 6525, 10095, 10875, 16825, 19517, 30285, 32625, 50475, 58551, 84125, 97585, 151425, 175653, 252375, 292755, 487925, 757125, 878265, 1463775, 2439625, 4391325, 7318875, 21956625]

約数ペア:

[(1, 21956625), (3, 7318875), (5, 4391325), (9, 2439625), (15, 1463775), (25, 878265), (29, 757125), (45, 487925), (75, 292755), (87, 252375), (125, 175653), (145, 151425), (225, 97585), (261, 84125), (375, 58551), (435, 50475), (673, 32625), (725, 30285), (1125, 19517), (1305, 16825), (2019, 10875), (2175, 10095), (3365, 6525), (3625, 6057)]