19380272

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1657}}^1$

素因数の和:1725

約数の個数: 40

約数和(自身を含む): 40707216

約数和(自身を除く): 21326944

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1657, 2924, 3314, 5848, 6628, 11696, 13256, 26512, 28169, 56338, 71251, 112676, 142502, 225352, 285004, 450704, 570008, 1140016, 1211267, 2422534, 4845068, 9690136, 19380272]

約数ペア:

[(1, 19380272), (2, 9690136), (4, 4845068), (8, 2422534), (16, 1211267), (17, 1140016), (34, 570008), (43, 450704), (68, 285004), (86, 225352), (136, 142502), (172, 112676), (272, 71251), (344, 56338), (688, 28169), (731, 26512), (1462, 13256), (1657, 11696), (2924, 6628), (3314, 5848)]