21094731

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17623}}^1$

素因数の和:17655

約数の個数: 24

約数和(自身を含む): 36657920

約数和(自身を除く): 15563189

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17623, 52869, 123361, 158607, 334837, 370083, 1004511, 1110249, 2343859, 3013533, 7031577, 21094731]

約数ペア:

[(1, 21094731), (3, 7031577), (7, 3013533), (9, 2343859), (19, 1110249), (21, 1004511), (57, 370083), (63, 334837), (133, 158607), (171, 123361), (399, 52869), (1197, 17623)]