217749119

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 270065664

約数和(自身を除く): 52316545

約数列:

[1, 7, 23, 43, 71, 161, 301, 443, 497, 989, 1633, 3053, 3101, 6923, 10189, 11431, 19049, 21371, 31453, 70219, 71323, 133343, 220171, 438127, 491533, 723419, 1352479, 3066889, 5063933, 9467353, 31107017, 217749119]

約数ペア:

[(1, 217749119), (7, 31107017), (23, 9467353), (43, 5063933), (71, 3066889), (161, 1352479), (301, 723419), (443, 491533), (497, 438127), (989, 220171), (1633, 133343), (3053, 71323), (3101, 70219), (6923, 31453), (10189, 21371), (11431, 19049)]