20423689

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7517}}^1$

素因数の和:7560

約数の個数: 16

約数和(自身を含む): 25260480

約数和(自身を除く): 4836791

約数列:

[1, 11, 13, 19, 143, 209, 247, 2717, 7517, 82687, 97721, 142823, 1074931, 1571053, 1856699, 20423689]

約数ペア:

[(1, 20423689), (11, 1856699), (13, 1571053), (19, 1074931), (143, 142823), (209, 97721), (247, 82687), (2717, 7517)]