12181715

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 18458496

約数和(自身を除く): 6276781

約数列:

[1, 5, 7, 13, 35, 41, 65, 91, 205, 287, 455, 533, 653, 1435, 2665, 3265, 3731, 4571, 8489, 18655, 22855, 26773, 42445, 59423, 133865, 187411, 297115, 348049, 937055, 1740245, 2436343, 12181715]

約数ペア:

[(1, 12181715), (5, 2436343), (7, 1740245), (13, 937055), (35, 348049), (41, 297115), (65, 187411), (91, 133865), (205, 59423), (287, 42445), (455, 26773), (533, 22855), (653, 18655), (1435, 8489), (2665, 4571), (3265, 3731)]