20165999

素因数分解:

$7^4\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:292

約数の個数: 20

約数和(自身を含む): 24267864

約数和(自身を除く): 4101865

約数列:

[1, 7, 37, 49, 227, 259, 343, 1589, 1813, 2401, 8399, 11123, 12691, 58793, 77861, 88837, 411551, 545027, 2880857, 20165999]

約数ペア:

[(1, 20165999), (7, 2880857), (37, 545027), (49, 411551), (227, 88837), (259, 77861), (343, 58793), (1589, 12691), (1813, 11123), (2401, 8399)]