19798144

素因数分解:

$2^7\times {\mathrm{137}}^1\times {\mathrm{1129}}^1$

素因数の和:1280

約数の個数: 32

約数和(自身を含む): 39764700

約数和(自身を除く): 19966556

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 274, 548, 1096, 1129, 2192, 2258, 4384, 4516, 8768, 9032, 17536, 18064, 36128, 72256, 144512, 154673, 309346, 618692, 1237384, 2474768, 4949536, 9899072, 19798144]

約数ペア:

[(1, 19798144), (2, 9899072), (4, 4949536), (8, 2474768), (16, 1237384), (32, 618692), (64, 309346), (128, 154673), (137, 144512), (274, 72256), (548, 36128), (1096, 18064), (1129, 17536), (2192, 9032), (2258, 8768), (4384, 4516)]