20820172

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1373}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 38779776

約数和(自身を除く): 17959604

約数列:

[1, 2, 4, 17, 34, 68, 223, 446, 892, 1373, 2746, 3791, 5492, 7582, 15164, 23341, 46682, 93364, 306179, 612358, 1224716, 5205043, 10410086, 20820172]

約数ペア:

[(1, 20820172), (2, 10410086), (4, 5205043), (17, 1224716), (34, 612358), (68, 306179), (223, 93364), (446, 46682), (892, 23341), (1373, 15164), (2746, 7582), (3791, 5492)]