20981727138

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{435649}}^1$

素因数の和:436026

約数の個数: 32

約数和(自身を含む): 43913520000

約数和(自身を除く): 22931792862

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 349, 698, 1047, 2094, 8027, 16054, 24081, 48162, 435649, 871298, 1306947, 2613894, 10019927, 20039854, 30059781, 60119562, 152041501, 304083002, 456124503, 912249006, 3496954523, 6993909046, 10490863569, 20981727138]

約数ペア:

[(1, 20981727138), (2, 10490863569), (3, 6993909046), (6, 3496954523), (23, 912249006), (46, 456124503), (69, 304083002), (138, 152041501), (349, 60119562), (698, 30059781), (1047, 20039854), (2094, 10019927), (8027, 2613894), (16054, 1306947), (24081, 871298), (48162, 435649)]