726740721

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 1267875840

約数和(自身を除く): 541135119

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 223, 301, 387, 401, 669, 903, 1161, 1203, 1561, 2007, 2709, 2807, 3609, 4683, 6021, 8127, 8421, 9589, 10827, 14049, 17243, 25263, 28767, 42147, 51729, 67123, 75789, 86301, 89423, 120701, 155187, 201369, 258903, 268269, 362103, 465561, 604107, 625961, 804807, 1086309, 1812321, 1877883, 2414421, 3258927, 3845189, 5633649, 11535567, 16900947, 26916323, 34606701, 80748969, 103820103, 242246907, 726740721]

約数ペア:

[(1, 726740721), (3, 242246907), (7, 103820103), (9, 80748969), (21, 34606701), (27, 26916323), (43, 16900947), (63, 11535567), (129, 5633649), (189, 3845189), (223, 3258927), (301, 2414421), (387, 1877883), (401, 1812321), (669, 1086309), (903, 804807), (1161, 625961), (1203, 604107), (1561, 465561), (2007, 362103), (2709, 268269), (2807, 258903), (3609, 201369), (4683, 155187), (6021, 120701), (8127, 89423), (8421, 86301), (9589, 75789), (10827, 67123), (14049, 51729), (17243, 42147), (25263, 28767)]