21913012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1427}}^1$

素因数の和:1791

約数の個数: 24

約数和(自身を含む): 41983200

約数和(自身を除く): 20070188

約数列:

[1, 2, 4, 11, 22, 44, 349, 698, 1396, 1427, 2854, 3839, 5708, 7678, 15356, 15697, 31394, 62788, 498023, 996046, 1992092, 5478253, 10956506, 21913012]

約数ペア:

[(1, 21913012), (2, 10956506), (4, 5478253), (11, 1992092), (22, 996046), (44, 498023), (349, 62788), (698, 31394), (1396, 15697), (1427, 15356), (2854, 7678), (3839, 5708)]