21114790

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{383}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18283610

約数列:

[1, 2, 5, 10, 37, 74, 149, 185, 298, 370, 383, 745, 766, 1490, 1915, 3830, 5513, 11026, 14171, 27565, 28342, 55130, 57067, 70855, 114134, 141710, 285335, 570670, 2111479, 4222958, 10557395, 21114790]

約数ペア:

[(1, 21114790), (2, 10557395), (5, 4222958), (10, 2111479), (37, 570670), (74, 285335), (149, 141710), (185, 114134), (298, 70855), (370, 57067), (383, 55130), (745, 28342), (766, 27565), (1490, 14171), (1915, 11026), (3830, 5513)]