21741918

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 49876992

約数和(自身を除く): 28135074

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 47, 66, 86, 94, 129, 141, 163, 258, 282, 326, 473, 489, 517, 946, 978, 1034, 1419, 1551, 1793, 2021, 2838, 3102, 3586, 4042, 5379, 6063, 7009, 7661, 10758, 12126, 14018, 15322, 21027, 22231, 22983, 42054, 44462, 45966, 66693, 77099, 84271, 133386, 154198, 168542, 231297, 252813, 329423, 462594, 505626, 658846, 988269, 1976538, 3623653, 7247306, 10870959, 21741918]

約数ペア:

[(1, 21741918), (2, 10870959), (3, 7247306), (6, 3623653), (11, 1976538), (22, 988269), (33, 658846), (43, 505626), (47, 462594), (66, 329423), (86, 252813), (94, 231297), (129, 168542), (141, 154198), (163, 133386), (258, 84271), (282, 77099), (326, 66693), (473, 45966), (489, 44462), (517, 42054), (946, 22983), (978, 22231), (1034, 21027), (1419, 15322), (1551, 14018), (1793, 12126), (2021, 10758), (2838, 7661), (3102, 7009), (3586, 6063), (4042, 5379)]