18738495

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 34201440

約数和(自身を除く): 15462945

約数列:

[1, 3, 5, 9, 15, 29, 45, 83, 87, 145, 173, 249, 261, 415, 435, 519, 747, 865, 1245, 1305, 1557, 2407, 2595, 3735, 5017, 7221, 7785, 12035, 14359, 15051, 21663, 25085, 36105, 43077, 45153, 71795, 75255, 108315, 129231, 215385, 225765, 416411, 646155, 1249233, 2082055, 3747699, 6246165, 18738495]

約数ペア:

[(1, 18738495), (3, 6246165), (5, 3747699), (9, 2082055), (15, 1249233), (29, 646155), (45, 416411), (83, 225765), (87, 215385), (145, 129231), (173, 108315), (249, 75255), (261, 71795), (415, 45153), (435, 43077), (519, 36105), (747, 25085), (865, 21663), (1245, 15051), (1305, 14359), (1557, 12035), (2407, 7785), (2595, 7221), (3735, 5017)]