16815215

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1303}}^1$

素因数の和:1426

約数の個数: 16

約数和(自身を含む): 21124800

約数和(自身を除く): 4309585

約数列:

[1, 5, 29, 89, 145, 445, 1303, 2581, 6515, 12905, 37787, 115967, 188935, 579835, 3363043, 16815215]

約数ペア:

[(1, 16815215), (5, 3363043), (29, 579835), (89, 188935), (145, 115967), (445, 37787), (1303, 12905), (2581, 6515)]