18211320868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{82657}}^1$

素因数の和:82916

約数の個数: 48

約数和(自身を含む): 36290168320

約数和(自身を除く): 18078847452

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 223, 247, 446, 494, 892, 988, 2899, 4237, 5798, 8474, 11596, 16948, 55081, 82657, 110162, 165314, 220324, 330628, 1074541, 1570483, 2149082, 3140966, 4298164, 6281932, 18432511, 20416279, 36865022, 40832558, 73730044, 81665116, 239622643, 350217709, 479245286, 700435418, 958490572, 1400870836, 4552830217, 9105660434, 18211320868]

約数ペア:

[(1, 18211320868), (2, 9105660434), (4, 4552830217), (13, 1400870836), (19, 958490572), (26, 700435418), (38, 479245286), (52, 350217709), (76, 239622643), (223, 81665116), (247, 73730044), (446, 40832558), (494, 36865022), (892, 20416279), (988, 18432511), (2899, 6281932), (4237, 4298164), (5798, 3140966), (8474, 2149082), (11596, 1570483), (16948, 1074541), (55081, 330628), (82657, 220324), (110162, 165314)]