21194012

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 44943360

約数和(自身を除く): 23749348

約数列:

[1, 2, 4, 7, 14, 28, 29, 43, 58, 86, 116, 172, 203, 301, 406, 602, 607, 812, 1204, 1214, 1247, 2428, 2494, 4249, 4988, 8498, 8729, 16996, 17458, 17603, 26101, 34916, 35206, 52202, 70412, 104404, 123221, 182707, 246442, 365414, 492884, 730828, 756929, 1513858, 3027716, 5298503, 10597006, 21194012]

約数ペア:

[(1, 21194012), (2, 10597006), (4, 5298503), (7, 3027716), (14, 1513858), (28, 756929), (29, 730828), (43, 492884), (58, 365414), (86, 246442), (116, 182707), (172, 123221), (203, 104404), (301, 70412), (406, 52202), (602, 35206), (607, 34916), (812, 26101), (1204, 17603), (1214, 17458), (1247, 16996), (2428, 8729), (2494, 8498), (4249, 4988)]