18850221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{439}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 29469440

約数和(自身を除く): 10619219

約数列:

[1, 3, 9, 13, 39, 117, 367, 439, 1101, 1317, 3303, 3951, 4771, 5707, 14313, 17121, 42939, 51363, 161113, 483339, 1450017, 2094469, 6283407, 18850221]

約数ペア:

[(1, 18850221), (3, 6283407), (9, 2094469), (13, 1450017), (39, 483339), (117, 161113), (367, 51363), (439, 42939), (1101, 17121), (1317, 14313), (3303, 5707), (3951, 4771)]