20119204

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4463}}^1$

素因数の和:4504

約数の個数: 36

約数和(自身を含む): 42747264

約数和(自身を除く): 22628060

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4463, 4508, 8926, 17852, 31241, 62482, 102649, 124964, 205298, 218687, 410596, 437374, 718543, 874748, 1437086, 2874172, 5029801, 10059602, 20119204]

約数ペア:

[(1, 20119204), (2, 10059602), (4, 5029801), (7, 2874172), (14, 1437086), (23, 874748), (28, 718543), (46, 437374), (49, 410596), (92, 218687), (98, 205298), (161, 124964), (196, 102649), (322, 62482), (644, 31241), (1127, 17852), (2254, 8926), (4463, 4508)]