1387421

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 16

約数和(自身を含む): 1710720

約数和(自身を除く): 323299

約数列:

[1, 7, 17, 89, 119, 131, 623, 917, 1513, 2227, 10591, 11659, 15589, 81613, 198203, 1387421]

約数ペア:

[(1, 1387421), (7, 198203), (17, 81613), (89, 15589), (119, 11659), (131, 10591), (623, 2227), (917, 1513)]