21414080

素因数分解:

$2^6\times 5^1\times {\mathrm{66919}}^1$

素因数の和:66936

約数の個数: 28

約数和(自身を含む): 50993040

約数和(自身を除く): 29578960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66919, 133838, 267676, 334595, 535352, 669190, 1070704, 1338380, 2141408, 2676760, 4282816, 5353520, 10707040, 21414080]

約数ペア:

[(1, 21414080), (2, 10707040), (4, 5353520), (5, 4282816), (8, 2676760), (10, 2141408), (16, 1338380), (20, 1070704), (32, 669190), (40, 535352), (64, 334595), (80, 267676), (160, 133838), (320, 66919)]