21069780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{811}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 59204544

約数和(自身を除く): 38134764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 433, 811, 866, 1299, 1622, 1732, 2165, 2433, 2598, 3244, 4055, 4330, 4866, 5196, 6495, 8110, 8660, 9732, 12165, 12990, 16220, 24330, 25980, 48660, 351163, 702326, 1053489, 1404652, 1755815, 2106978, 3511630, 4213956, 5267445, 7023260, 10534890, 21069780]

約数ペア:

[(1, 21069780), (2, 10534890), (3, 7023260), (4, 5267445), (5, 4213956), (6, 3511630), (10, 2106978), (12, 1755815), (15, 1404652), (20, 1053489), (30, 702326), (60, 351163), (433, 48660), (811, 25980), (866, 24330), (1299, 16220), (1622, 12990), (1732, 12165), (2165, 9732), (2433, 8660), (2598, 8110), (3244, 6495), (4055, 5196), (4330, 4866)]