18987188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{1901}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 36427104

約数和(自身を除く): 17439916

約数列:

[1, 2, 4, 11, 22, 44, 227, 454, 908, 1901, 2497, 3802, 4994, 7604, 9988, 20911, 41822, 83644, 431527, 863054, 1726108, 4746797, 9493594, 18987188]

約数ペア:

[(1, 18987188), (2, 9493594), (4, 4746797), (11, 1726108), (22, 863054), (44, 431527), (227, 83644), (454, 41822), (908, 20911), (1901, 9988), (2497, 7604), (3802, 4994)]