217455816

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{210713}}^1$

素因数の和:210765

約数の個数: 32

約数和(自身を含む): 556284960

約数和(自身を除く): 338829144

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 210713, 421426, 632139, 842852, 1264278, 1685704, 2528556, 5057112, 9060659, 18121318, 27181977, 36242636, 54363954, 72485272, 108727908, 217455816]

約数ペア:

[(1, 217455816), (2, 108727908), (3, 72485272), (4, 54363954), (6, 36242636), (8, 27181977), (12, 18121318), (24, 9060659), (43, 5057112), (86, 2528556), (129, 1685704), (172, 1264278), (258, 842852), (344, 632139), (516, 421426), (1032, 210713)]