21727700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12781}}^1$

素因数の和:12812

約数の個数: 36

約数和(自身を含む): 49926492

約数和(自身を除く): 28198792

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12781, 25562, 51124, 63905, 127810, 217277, 255620, 319525, 434554, 639050, 869108, 1086385, 1278100, 2172770, 4345540, 5431925, 10863850, 21727700]

約数ペア:

[(1, 21727700), (2, 10863850), (4, 5431925), (5, 4345540), (10, 2172770), (17, 1278100), (20, 1086385), (25, 869108), (34, 639050), (50, 434554), (68, 319525), (85, 255620), (100, 217277), (170, 127810), (340, 63905), (425, 51124), (850, 25562), (1700, 12781)]