20291245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2383}}^1$

素因数の和:2532

約数の個数: 16

約数和(自身を含む): 26433792

約数和(自身を除く): 6142547

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2383, 8515, 11915, 30979, 154895, 312173, 1560865, 4058249, 20291245]

約数ペア:

[(1, 20291245), (5, 4058249), (13, 1560865), (65, 312173), (131, 154895), (655, 30979), (1703, 11915), (2383, 8515)]