19999808

素因数分解:

$2^6\times {\mathrm{137}}^1\times {\mathrm{2281}}^1$

素因数の和:2430

約数の個数: 28

約数和(自身を含む): 39994332

約数和(自身を除く): 19994524

約数列:

[1, 2, 4, 8, 16, 32, 64, 137, 274, 548, 1096, 2192, 2281, 4384, 4562, 8768, 9124, 18248, 36496, 72992, 145984, 312497, 624994, 1249988, 2499976, 4999952, 9999904, 19999808]

約数ペア:

[(1, 19999808), (2, 9999904), (4, 4999952), (8, 2499976), (16, 1249988), (32, 624994), (64, 312497), (137, 145984), (274, 72992), (548, 36496), (1096, 18248), (2192, 9124), (2281, 8768), (4384, 4562)]