18112017

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 32044032

約数和(自身を除く): 13932015

約数列:

[1, 3, 7, 11, 21, 23, 33, 49, 69, 77, 147, 161, 231, 253, 483, 487, 539, 759, 1127, 1461, 1617, 1771, 3381, 3409, 5313, 5357, 10227, 11201, 12397, 16071, 23863, 33603, 37191, 37499, 71589, 78407, 112497, 123211, 235221, 262493, 369633, 548849, 787479, 862477, 1646547, 2587431, 6037339, 18112017]

約数ペア:

[(1, 18112017), (3, 6037339), (7, 2587431), (11, 1646547), (21, 862477), (23, 787479), (33, 548849), (49, 369633), (69, 262493), (77, 235221), (147, 123211), (161, 112497), (231, 78407), (253, 71589), (483, 37499), (487, 37191), (539, 33603), (759, 23863), (1127, 16071), (1461, 12397), (1617, 11201), (1771, 10227), (3381, 5357), (3409, 5313)]