21669804

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2437}}^1$

素因数の和:2479

約数の個数: 72

約数和(自身を含む): 62120240

約数和(自身を除く): 40450436

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2437, 2964, 4446, 4874, 7311, 8892, 9748, 14622, 21933, 29244, 31681, 43866, 46303, 63362, 87732, 92606, 95043, 126724, 138909, 185212, 190086, 277818, 285129, 380172, 416727, 555636, 570258, 601939, 833454, 1140516, 1203878, 1666908, 1805817, 2407756, 3611634, 5417451, 7223268, 10834902, 21669804]

約数ペア:

[(1, 21669804), (2, 10834902), (3, 7223268), (4, 5417451), (6, 3611634), (9, 2407756), (12, 1805817), (13, 1666908), (18, 1203878), (19, 1140516), (26, 833454), (36, 601939), (38, 570258), (39, 555636), (52, 416727), (57, 380172), (76, 285129), (78, 277818), (114, 190086), (117, 185212), (156, 138909), (171, 126724), (228, 95043), (234, 92606), (247, 87732), (342, 63362), (468, 46303), (494, 43866), (684, 31681), (741, 29244), (988, 21933), (1482, 14622), (2223, 9748), (2437, 8892), (2964, 7311), (4446, 4874)]