21582880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12263}}^1$

素因数の和:12289

約数の個数: 48

約数和(自身を含む): 55629504

約数和(自身を除く): 34046624

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12263, 24526, 49052, 61315, 98104, 122630, 134893, 196208, 245260, 269786, 392416, 490520, 539572, 674465, 981040, 1079144, 1348930, 1962080, 2158288, 2697860, 4316576, 5395720, 10791440, 21582880]

約数ペア:

[(1, 21582880), (2, 10791440), (4, 5395720), (5, 4316576), (8, 2697860), (10, 2158288), (11, 1962080), (16, 1348930), (20, 1079144), (22, 981040), (32, 674465), (40, 539572), (44, 490520), (55, 392416), (80, 269786), (88, 245260), (110, 196208), (160, 134893), (176, 122630), (220, 98104), (352, 61315), (440, 49052), (880, 24526), (1760, 12263)]