2619981

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:490

約数の個数: 36

約数和(自身を含む): 4751292

約数和(自身を除く): 2131311

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 457, 637, 819, 1371, 1911, 3199, 4113, 5733, 5941, 9597, 17823, 22393, 28791, 41587, 53469, 67179, 124761, 201537, 291109, 374283, 873327, 2619981]

約数ペア:

[(1, 2619981), (3, 873327), (7, 374283), (9, 291109), (13, 201537), (21, 124761), (39, 67179), (49, 53469), (63, 41587), (91, 28791), (117, 22393), (147, 17823), (273, 9597), (441, 5941), (457, 5733), (637, 4113), (819, 3199), (1371, 1911)]