19982272

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 56

約数和(自身を含む): 41641776

約数和(自身を除く): 21659504

約数列:

[1, 2, 4, 8, 16, 32, 43, 53, 64, 86, 106, 137, 172, 212, 274, 344, 424, 548, 688, 848, 1096, 1376, 1696, 2192, 2279, 2752, 3392, 4384, 4558, 5891, 7261, 8768, 9116, 11782, 14522, 18232, 23564, 29044, 36464, 47128, 58088, 72928, 94256, 116176, 145856, 188512, 232352, 312223, 377024, 464704, 624446, 1248892, 2497784, 4995568, 9991136, 19982272]

約数ペア:

[(1, 19982272), (2, 9991136), (4, 4995568), (8, 2497784), (16, 1248892), (32, 624446), (43, 464704), (53, 377024), (64, 312223), (86, 232352), (106, 188512), (137, 145856), (172, 116176), (212, 94256), (274, 72928), (344, 58088), (424, 47128), (548, 36464), (688, 29044), (848, 23564), (1096, 18232), (1376, 14522), (1696, 11782), (2192, 9116), (2279, 8768), (2752, 7261), (3392, 5891), (4384, 4558)]