20211980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59447}}^1$

素因数の和:59473

約数の個数: 24

約数和(自身を含む): 44942688

約数和(自身を除く): 24730708

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 59447, 118894, 237788, 297235, 594470, 1010599, 1188940, 2021198, 4042396, 5052995, 10105990, 20211980]

約数ペア:

[(1, 20211980), (2, 10105990), (4, 5052995), (5, 4042396), (10, 2021198), (17, 1188940), (20, 1010599), (34, 594470), (68, 297235), (85, 237788), (170, 118894), (340, 59447)]