21775300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12809}}^1$

素因数の和:12840

約数の個数: 36

約数和(自身を含む): 50035860

約数和(自身を除く): 28260560

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12809, 25618, 51236, 64045, 128090, 217753, 256180, 320225, 435506, 640450, 871012, 1088765, 1280900, 2177530, 4355060, 5443825, 10887650, 21775300]

約数ペア:

[(1, 21775300), (2, 10887650), (4, 5443825), (5, 4355060), (10, 2177530), (17, 1280900), (20, 1088765), (25, 871012), (34, 640450), (50, 435506), (68, 320225), (85, 256180), (100, 217753), (170, 128090), (340, 64045), (425, 51236), (850, 25618), (1700, 12809)]