19489072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{523}}^1$

素因数の和:685

約数の個数: 40

約数和(自身を含む): 40350096

約数和(自身を除く): 20861024

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 137, 272, 274, 523, 548, 1046, 1096, 2092, 2192, 2329, 4184, 4658, 8368, 8891, 9316, 17782, 18632, 35564, 37264, 71128, 71651, 142256, 143302, 286604, 573208, 1146416, 1218067, 2436134, 4872268, 9744536, 19489072]

約数ペア:

[(1, 19489072), (2, 9744536), (4, 4872268), (8, 2436134), (16, 1218067), (17, 1146416), (34, 573208), (68, 286604), (136, 143302), (137, 142256), (272, 71651), (274, 71128), (523, 37264), (548, 35564), (1046, 18632), (1096, 17782), (2092, 9316), (2192, 8891), (2329, 8368), (4184, 4658)]