21199380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2579}}^1$

素因数の和:2728

約数の個数: 48

約数和(自身を含む): 59814720

約数和(自身を除く): 38615340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2579, 2740, 4110, 5158, 7737, 8220, 10316, 12895, 15474, 25790, 30948, 38685, 51580, 77370, 154740, 353323, 706646, 1059969, 1413292, 1766615, 2119938, 3533230, 4239876, 5299845, 7066460, 10599690, 21199380]

約数ペア:

[(1, 21199380), (2, 10599690), (3, 7066460), (4, 5299845), (5, 4239876), (6, 3533230), (10, 2119938), (12, 1766615), (15, 1413292), (20, 1059969), (30, 706646), (60, 353323), (137, 154740), (274, 77370), (411, 51580), (548, 38685), (685, 30948), (822, 25790), (1370, 15474), (1644, 12895), (2055, 10316), (2579, 8220), (2740, 7737), (4110, 5158)]