21242645

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3407}}^1$

素因数の和:3484

約数の個数: 16

約数和(自身を含む): 26991360

約数和(自身を除く): 5748715

約数列:

[1, 5, 29, 43, 145, 215, 1247, 3407, 6235, 17035, 98803, 146501, 494015, 732505, 4248529, 21242645]

約数ペア:

[(1, 21242645), (5, 4248529), (29, 732505), (43, 494015), (145, 146501), (215, 98803), (1247, 17035), (3407, 6235)]