21067140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1129}}^1$

素因数の和:1452

約数の個数: 48

約数和(自身を含む): 59230080

約数和(自身を除く): 38162940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 933, 1129, 1244, 1555, 1866, 2258, 3110, 3387, 3732, 4516, 4665, 5645, 6220, 6774, 9330, 11290, 13548, 16935, 18660, 22580, 33870, 67740, 351119, 702238, 1053357, 1404476, 1755595, 2106714, 3511190, 4213428, 5266785, 7022380, 10533570, 21067140]

約数ペア:

[(1, 21067140), (2, 10533570), (3, 7022380), (4, 5266785), (5, 4213428), (6, 3511190), (10, 2106714), (12, 1755595), (15, 1404476), (20, 1053357), (30, 702238), (60, 351119), (311, 67740), (622, 33870), (933, 22580), (1129, 18660), (1244, 16935), (1555, 13548), (1866, 11290), (2258, 9330), (3110, 6774), (3387, 6220), (3732, 5645), (4516, 4665)]