1640778867

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{286199}}^1$

素因数の和:286232

約数の個数: 36

約数和(自身を含む): 2969038800

約数和(自身を除く): 1328259933

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 5733, 286199, 858597, 2003393, 2575791, 3720587, 6010179, 11161761, 14023751, 18030537, 26044109, 33485283, 42071253, 78132327, 126213759, 182308763, 234396981, 546926289, 1640778867]

約数ペア:

[(1, 1640778867), (3, 546926289), (7, 234396981), (9, 182308763), (13, 126213759), (21, 78132327), (39, 42071253), (49, 33485283), (63, 26044109), (91, 18030537), (117, 14023751), (147, 11161761), (273, 6010179), (441, 3720587), (637, 2575791), (819, 2003393), (1911, 858597), (5733, 286199)]