7215140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21221}}^1$

素因数の和:21247

約数の個数: 24

約数和(自身を含む): 16043832

約数和(自身を除く): 8828692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 21221, 42442, 84884, 106105, 212210, 360757, 424420, 721514, 1443028, 1803785, 3607570, 7215140]

約数ペア:

[(1, 7215140), (2, 3607570), (4, 1803785), (5, 1443028), (10, 721514), (17, 424420), (20, 360757), (34, 212210), (68, 106105), (85, 84884), (170, 42442), (340, 21221)]