21074080

素因数分解:

$2^5\times 5^1\times {\mathrm{131713}}^1$

素因数の和:131728

約数の個数: 24

約数和(自身を含む): 49787892

約数和(自身を除く): 28713812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131713, 263426, 526852, 658565, 1053704, 1317130, 2107408, 2634260, 4214816, 5268520, 10537040, 21074080]

約数ペア:

[(1, 21074080), (2, 10537040), (4, 5268520), (5, 4214816), (8, 2634260), (10, 2107408), (16, 1317130), (20, 1053704), (32, 658565), (40, 526852), (80, 263426), (160, 131713)]