18763953

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 28148736

約数和(自身を除く): 9384783

約数列:

[1, 3, 13, 39, 43, 67, 129, 167, 201, 501, 559, 871, 1677, 2171, 2613, 2881, 6513, 7181, 8643, 11189, 21543, 33567, 37453, 93353, 112359, 145457, 280059, 436371, 481127, 1443381, 6254651, 18763953]

約数ペア:

[(1, 18763953), (3, 6254651), (13, 1443381), (39, 481127), (43, 436371), (67, 280059), (129, 145457), (167, 112359), (201, 93353), (501, 37453), (559, 33567), (871, 21543), (1677, 11189), (2171, 8643), (2613, 7181), (2881, 6513)]