18937156

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21817}}^1$

素因数の和:21859

約数の個数: 24

約数和(自身を含む): 39097856

約数和(自身を除く): 20160700

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21817, 43634, 87268, 152719, 305438, 610876, 676327, 1352654, 2705308, 4734289, 9468578, 18937156]

約数ペア:

[(1, 18937156), (2, 9468578), (4, 4734289), (7, 2705308), (14, 1352654), (28, 676327), (31, 610876), (62, 305438), (124, 152719), (217, 87268), (434, 43634), (868, 21817)]