21120468

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 51468480

約数和(自身を除く): 30348012

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 116, 137, 174, 274, 348, 411, 443, 548, 822, 886, 1329, 1644, 1772, 2658, 3973, 5316, 7946, 11919, 12847, 15892, 23838, 25694, 38541, 47676, 51388, 60691, 77082, 121382, 154164, 182073, 242764, 364146, 728292, 1760039, 3520078, 5280117, 7040156, 10560234, 21120468]

約数ペア:

[(1, 21120468), (2, 10560234), (3, 7040156), (4, 5280117), (6, 3520078), (12, 1760039), (29, 728292), (58, 364146), (87, 242764), (116, 182073), (137, 154164), (174, 121382), (274, 77082), (348, 60691), (411, 51388), (443, 47676), (548, 38541), (822, 25694), (886, 23838), (1329, 15892), (1644, 12847), (1772, 11919), (2658, 7946), (3973, 5316)]