209849159

素因数分解:

${\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 236535552

約数和(自身を除く): 26686393

約数列:

[1, 13, 43, 67, 169, 431, 559, 871, 2881, 5603, 7267, 11323, 18533, 28877, 37453, 72839, 240929, 375401, 486889, 1241711, 3132077, 4880213, 16142243, 209849159]

約数ペア:

[(1, 209849159), (13, 16142243), (43, 4880213), (67, 3132077), (169, 1241711), (431, 486889), (559, 375401), (871, 240929), (2881, 72839), (5603, 37453), (7267, 28877), (11323, 18533)]