840123

素因数分解:

$3^2\times {\mathrm{17}}^3\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 24

約数和(自身を含む): 1357200

約数和(自身を除く): 517077

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 289, 323, 867, 969, 2601, 2907, 4913, 5491, 14739, 16473, 44217, 49419, 93347, 280041, 840123]

約数ペア:

[(1, 840123), (3, 280041), (9, 93347), (17, 49419), (19, 44217), (51, 16473), (57, 14739), (153, 5491), (171, 4913), (289, 2907), (323, 2601), (867, 969)]