21730212

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1627}}^1$

素因数の和:1697

約数の個数: 72

約数和(自身を含む): 63999936

約数和(自身を除く): 42269724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1627, 1908, 2226, 3254, 3339, 4452, 4881, 6508, 6678, 9762, 11389, 13356, 14643, 19524, 22778, 29286, 34167, 45556, 58572, 68334, 86231, 102501, 136668, 172462, 205002, 258693, 344924, 410004, 517386, 603617, 776079, 1034772, 1207234, 1552158, 1810851, 2414468, 3104316, 3621702, 5432553, 7243404, 10865106, 21730212]

約数ペア:

[(1, 21730212), (2, 10865106), (3, 7243404), (4, 5432553), (6, 3621702), (7, 3104316), (9, 2414468), (12, 1810851), (14, 1552158), (18, 1207234), (21, 1034772), (28, 776079), (36, 603617), (42, 517386), (53, 410004), (63, 344924), (84, 258693), (106, 205002), (126, 172462), (159, 136668), (212, 102501), (252, 86231), (318, 68334), (371, 58572), (477, 45556), (636, 34167), (742, 29286), (954, 22778), (1113, 19524), (1484, 14643), (1627, 13356), (1908, 11389), (2226, 9762), (3254, 6678), (3339, 6508), (4452, 4881)]