18628281

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 31931172

約数和(自身を除く): 13302891

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 147, 159, 371, 441, 477, 797, 1113, 2391, 2597, 3339, 5579, 7173, 7791, 16737, 23373, 39053, 42241, 50211, 117159, 126723, 295687, 351477, 380169, 887061, 2069809, 2661183, 6209427, 18628281]

約数ペア:

[(1, 18628281), (3, 6209427), (7, 2661183), (9, 2069809), (21, 887061), (49, 380169), (53, 351477), (63, 295687), (147, 126723), (159, 117159), (371, 50211), (441, 42241), (477, 39053), (797, 23373), (1113, 16737), (2391, 7791), (2597, 7173), (3339, 5579)]