20199897

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 29949920

約数和(自身を除く): 9750023

約数列:

[1, 3, 9, 67, 139, 201, 241, 417, 603, 723, 1251, 2169, 9313, 16147, 27939, 33499, 48441, 83817, 100497, 145323, 301491, 2244433, 6733299, 20199897]

約数ペア:

[(1, 20199897), (3, 6733299), (9, 2244433), (67, 301491), (139, 145323), (201, 100497), (241, 83817), (417, 48441), (603, 33499), (723, 27939), (1251, 16147), (2169, 9313)]