21520343044

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{3877}}^1\times {\mathrm{81629}}^1$

素因数の和:85527

約数の個数: 24

約数和(自身を含む): 39886703640

約数和(自身を除く): 18366360596

約数列:

[1, 2, 4, 17, 34, 68, 3877, 7754, 15508, 65909, 81629, 131818, 163258, 263636, 326516, 1387693, 2775386, 5550772, 316475633, 632951266, 1265902532, 5380085761, 10760171522, 21520343044]

約数ペア:

[(1, 21520343044), (2, 10760171522), (4, 5380085761), (17, 1265902532), (34, 632951266), (68, 316475633), (3877, 5550772), (7754, 2775386), (15508, 1387693), (65909, 326516), (81629, 263636), (131818, 163258)]