21979140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1087}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 61780992

約数和(自身を除く): 39801852

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 337, 674, 1011, 1087, 1348, 1685, 2022, 2174, 3261, 3370, 4044, 4348, 5055, 5435, 6522, 6740, 10110, 10870, 13044, 16305, 20220, 21740, 32610, 65220, 366319, 732638, 1098957, 1465276, 1831595, 2197914, 3663190, 4395828, 5494785, 7326380, 10989570, 21979140]

約数ペア:

[(1, 21979140), (2, 10989570), (3, 7326380), (4, 5494785), (5, 4395828), (6, 3663190), (10, 2197914), (12, 1831595), (15, 1465276), (20, 1098957), (30, 732638), (60, 366319), (337, 65220), (674, 32610), (1011, 21740), (1087, 20220), (1348, 16305), (1685, 13044), (2022, 10870), (2174, 10110), (3261, 6740), (3370, 6522), (4044, 5435), (4348, 5055)]