13660465

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4289}}^1$

素因数の和:4321

約数の個数: 24

約数和(自身を含む): 20540520

約数和(自身を除く): 6880055

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 4289, 21445, 30023, 55757, 150115, 210161, 278785, 390299, 1050805, 1951495, 2732093, 13660465]

約数ペア:

[(1, 13660465), (5, 2732093), (7, 1951495), (13, 1050805), (35, 390299), (49, 278785), (65, 210161), (91, 150115), (245, 55757), (455, 30023), (637, 21445), (3185, 4289)]