9991136

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 20656944

約数和(自身を除く): 10665808

約数列:

[1, 2, 4, 8, 16, 32, 43, 53, 86, 106, 137, 172, 212, 274, 344, 424, 548, 688, 848, 1096, 1376, 1696, 2192, 2279, 4384, 4558, 5891, 7261, 9116, 11782, 14522, 18232, 23564, 29044, 36464, 47128, 58088, 72928, 94256, 116176, 188512, 232352, 312223, 624446, 1248892, 2497784, 4995568, 9991136]

約数ペア:

[(1, 9991136), (2, 4995568), (4, 2497784), (8, 1248892), (16, 624446), (32, 312223), (43, 232352), (53, 188512), (86, 116176), (106, 94256), (137, 72928), (172, 58088), (212, 47128), (274, 36464), (344, 29044), (424, 23564), (548, 18232), (688, 14522), (848, 11782), (1096, 9116), (1376, 7261), (1696, 5891), (2192, 4558), (2279, 4384)]