21466445

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4289}}^1$

素因数の和:4325

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 13128115

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 4289, 5005, 21445, 30023, 47179, 55757, 150115, 235895, 278785, 330253, 390299, 613327, 1651265, 1951495, 3066635, 4293289, 21466445]

約数ペア:

[(1, 21466445), (5, 4293289), (7, 3066635), (11, 1951495), (13, 1651265), (35, 613327), (55, 390299), (65, 330253), (77, 278785), (91, 235895), (143, 150115), (385, 55757), (455, 47179), (715, 30023), (1001, 21445), (4289, 5005)]