21392105

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{16519}}^1$

素因数の和:16568

約数の個数: 16

約数和(自身を含む): 30132480

約数和(自身を除く): 8740375

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 16519, 82595, 115633, 578165, 611203, 3056015, 4278421, 21392105]

約数ペア:

[(1, 21392105), (5, 4278421), (7, 3056015), (35, 611203), (37, 578165), (185, 115633), (259, 82595), (1295, 16519)]