20212998

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{593}}^1$

素因数の和:653

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27687162

約数列:

[1, 2, 3, 6, 13, 19, 23, 26, 38, 39, 46, 57, 69, 78, 114, 138, 247, 299, 437, 494, 593, 598, 741, 874, 897, 1186, 1311, 1482, 1779, 1794, 2622, 3558, 5681, 7709, 11267, 11362, 13639, 15418, 17043, 22534, 23127, 27278, 33801, 34086, 40917, 46254, 67602, 81834, 146471, 177307, 259141, 292942, 354614, 439413, 518282, 531921, 777423, 878826, 1063842, 1554846, 3368833, 6737666, 10106499, 20212998]

約数ペア:

[(1, 20212998), (2, 10106499), (3, 6737666), (6, 3368833), (13, 1554846), (19, 1063842), (23, 878826), (26, 777423), (38, 531921), (39, 518282), (46, 439413), (57, 354614), (69, 292942), (78, 259141), (114, 177307), (138, 146471), (247, 81834), (299, 67602), (437, 46254), (494, 40917), (593, 34086), (598, 33801), (741, 27278), (874, 23127), (897, 22534), (1186, 17043), (1311, 15418), (1482, 13639), (1779, 11362), (1794, 11267), (2622, 7709), (3558, 5681)]