21331212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 60662784

約数和(自身を除く): 39331572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 61, 69, 84, 92, 122, 138, 161, 181, 183, 244, 276, 322, 362, 366, 427, 483, 543, 644, 724, 732, 854, 966, 1086, 1267, 1281, 1403, 1708, 1932, 2172, 2534, 2562, 2806, 3801, 4163, 4209, 5068, 5124, 5612, 7602, 8326, 8418, 9821, 11041, 12489, 15204, 16652, 16836, 19642, 22082, 24978, 29141, 29463, 33123, 39284, 44164, 49956, 58282, 58926, 66246, 77287, 87423, 116564, 117852, 132492, 154574, 174846, 231861, 253943, 309148, 349692, 463722, 507886, 761829, 927444, 1015772, 1523658, 1777601, 3047316, 3555202, 5332803, 7110404, 10665606, 21331212]

約数ペア:

[(1, 21331212), (2, 10665606), (3, 7110404), (4, 5332803), (6, 3555202), (7, 3047316), (12, 1777601), (14, 1523658), (21, 1015772), (23, 927444), (28, 761829), (42, 507886), (46, 463722), (61, 349692), (69, 309148), (84, 253943), (92, 231861), (122, 174846), (138, 154574), (161, 132492), (181, 117852), (183, 116564), (244, 87423), (276, 77287), (322, 66246), (362, 58926), (366, 58282), (427, 49956), (483, 44164), (543, 39284), (644, 33123), (724, 29463), (732, 29141), (854, 24978), (966, 22082), (1086, 19642), (1267, 16836), (1281, 16652), (1403, 15204), (1708, 12489), (1932, 11041), (2172, 9821), (2534, 8418), (2562, 8326), (2806, 7602), (3801, 5612), (4163, 5124), (4209, 5068)]