19737774

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3643}}^1$

素因数の和:3701

約数の個数: 48

約数和(自身を含む): 50024832

約数和(自身を除く): 30287058

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 3643, 5418, 7286, 10929, 21858, 25501, 32787, 51002, 65574, 76503, 153006, 156649, 229509, 313298, 459018, 469947, 939894, 1096543, 1409841, 2193086, 2819682, 3289629, 6579258, 9868887, 19737774]

約数ペア:

[(1, 19737774), (2, 9868887), (3, 6579258), (6, 3289629), (7, 2819682), (9, 2193086), (14, 1409841), (18, 1096543), (21, 939894), (42, 469947), (43, 459018), (63, 313298), (86, 229509), (126, 156649), (129, 153006), (258, 76503), (301, 65574), (387, 51002), (602, 32787), (774, 25501), (903, 21858), (1806, 10929), (2709, 7286), (3643, 5418)]