21186126

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2447}}^1$

素因数の和:2505

約数の個数: 48

約数和(自身を含む): 50791104

約数和(自身を除く): 29604978

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2447, 2886, 4329, 4894, 7341, 8658, 14682, 22023, 31811, 44046, 63622, 90539, 95433, 181078, 190866, 271617, 286299, 543234, 572598, 814851, 1177007, 1629702, 2354014, 3531021, 7062042, 10593063, 21186126]

約数ペア:

[(1, 21186126), (2, 10593063), (3, 7062042), (6, 3531021), (9, 2354014), (13, 1629702), (18, 1177007), (26, 814851), (37, 572598), (39, 543234), (74, 286299), (78, 271617), (111, 190866), (117, 181078), (222, 95433), (234, 90539), (333, 63622), (481, 44046), (666, 31811), (962, 22023), (1443, 14682), (2447, 8658), (2886, 7341), (4329, 4894)]