20512635

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 39384576

約数和(自身を除く): 18871941

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 73, 131, 143, 165, 195, 219, 365, 393, 429, 655, 715, 803, 949, 1095, 1441, 1703, 1965, 2145, 2409, 2847, 4015, 4323, 4745, 5109, 7205, 8515, 9563, 10439, 12045, 14235, 18733, 21615, 25545, 28689, 31317, 47815, 52195, 56199, 93665, 105193, 124319, 143445, 156585, 280995, 315579, 372957, 525965, 621595, 1367509, 1577895, 1864785, 4102527, 6837545, 20512635]

約数ペア:

[(1, 20512635), (3, 6837545), (5, 4102527), (11, 1864785), (13, 1577895), (15, 1367509), (33, 621595), (39, 525965), (55, 372957), (65, 315579), (73, 280995), (131, 156585), (143, 143445), (165, 124319), (195, 105193), (219, 93665), (365, 56199), (393, 52195), (429, 47815), (655, 31317), (715, 28689), (803, 25545), (949, 21615), (1095, 18733), (1441, 14235), (1703, 12045), (1965, 10439), (2145, 9563), (2409, 8515), (2847, 7205), (4015, 5109), (4323, 4745)]