18727371

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2389}}^1$

素因数の和:2475

約数の個数: 24

約数和(自身を含む): 29578640

約数和(自身を除く): 10851269

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2389, 2613, 7167, 7839, 21501, 31057, 93171, 160063, 279513, 480189, 1440567, 2080819, 6242457, 18727371]

約数ペア:

[(1, 18727371), (3, 6242457), (9, 2080819), (13, 1440567), (39, 480189), (67, 279513), (117, 160063), (201, 93171), (603, 31057), (871, 21501), (2389, 7839), (2613, 7167)]