209643903

素因数分解:

$3^3\times 7^2\times {\mathrm{211}}^1\times {\mathrm{751}}^1$

素因数の和:985

約数の個数: 48

約数和(自身を含む): 363486720

約数和(自身を除く): 153842817

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 211, 441, 633, 751, 1323, 1477, 1899, 2253, 4431, 5257, 5697, 6759, 10339, 13293, 15771, 20277, 31017, 36799, 39879, 47313, 93051, 110397, 141939, 158461, 279153, 331191, 475383, 993573, 1109227, 1426149, 3327681, 4278447, 7764589, 9983043, 23293767, 29949129, 69881301, 209643903]

約数ペア:

[(1, 209643903), (3, 69881301), (7, 29949129), (9, 23293767), (21, 9983043), (27, 7764589), (49, 4278447), (63, 3327681), (147, 1426149), (189, 1109227), (211, 993573), (441, 475383), (633, 331191), (751, 279153), (1323, 158461), (1477, 141939), (1899, 110397), (2253, 93051), (4431, 47313), (5257, 39879), (5697, 36799), (6759, 31017), (10339, 20277), (13293, 15771)]