21234080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18959}}^1$

素因数の和:18981

約数の個数: 48

約数和(自身を含む): 57335040

約数和(自身を除く): 36100960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18959, 37918, 75836, 94795, 132713, 151672, 189590, 265426, 303344, 379180, 530852, 606688, 663565, 758360, 1061704, 1327130, 1516720, 2123408, 2654260, 3033440, 4246816, 5308520, 10617040, 21234080]

約数ペア:

[(1, 21234080), (2, 10617040), (4, 5308520), (5, 4246816), (7, 3033440), (8, 2654260), (10, 2123408), (14, 1516720), (16, 1327130), (20, 1061704), (28, 758360), (32, 663565), (35, 606688), (40, 530852), (56, 379180), (70, 303344), (80, 265426), (112, 189590), (140, 151672), (160, 132713), (224, 94795), (280, 75836), (560, 37918), (1120, 18959)]