21300443728

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{167099}}^1$

素因数の和:167395

約数の個数: 40

約数和(自身を含む): 42766905600

約数和(自身を除く): 21466461872

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 257, 496, 514, 1028, 2056, 4112, 7967, 15934, 31868, 63736, 127472, 167099, 334198, 668396, 1336792, 2673584, 5180069, 10360138, 20720276, 41440552, 42944443, 82881104, 85888886, 171777772, 343555544, 687111088, 1331277733, 2662555466, 5325110932, 10650221864, 21300443728]

約数ペア:

[(1, 21300443728), (2, 10650221864), (4, 5325110932), (8, 2662555466), (16, 1331277733), (31, 687111088), (62, 343555544), (124, 171777772), (248, 85888886), (257, 82881104), (496, 42944443), (514, 41440552), (1028, 20720276), (2056, 10360138), (4112, 5180069), (7967, 2673584), (15934, 1336792), (31868, 668396), (63736, 334198), (127472, 167099)]