18469919

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 32

約数和(自身を含む): 22471680

約数和(自身を除く): 4001761

約数列:

[1, 13, 19, 37, 43, 47, 247, 481, 559, 611, 703, 817, 893, 1591, 1739, 2021, 9139, 10621, 11609, 20683, 22607, 26273, 30229, 33041, 38399, 74777, 392977, 429533, 499187, 972101, 1420763, 18469919]

約数ペア:

[(1, 18469919), (13, 1420763), (19, 972101), (37, 499187), (43, 429533), (47, 392977), (247, 74777), (481, 38399), (559, 33041), (611, 30229), (703, 26273), (817, 22607), (893, 20683), (1591, 11609), (1739, 10621), (2021, 9139)]