321399

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:127

約数の個数: 24

約数和(自身を含む): 519792

約数和(自身を除く): 198393

約数列:

[1, 3, 9, 13, 39, 41, 67, 117, 123, 201, 369, 533, 603, 871, 1599, 2613, 2747, 4797, 7839, 8241, 24723, 35711, 107133, 321399]

約数ペア:

[(1, 321399), (3, 107133), (9, 35711), (13, 24723), (39, 8241), (41, 7839), (67, 4797), (117, 2747), (123, 2613), (201, 1599), (369, 871), (533, 603)]