25564497

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 40255488

約数和(自身を除く): 14690991

約数列:

[1, 3, 7, 21, 53, 103, 159, 223, 309, 371, 669, 721, 1113, 1561, 2163, 4683, 5459, 11819, 16377, 22969, 35457, 38213, 68907, 82733, 114639, 160783, 248199, 482349, 1217357, 3652071, 8521499, 25564497]

約数ペア:

[(1, 25564497), (3, 8521499), (7, 3652071), (21, 1217357), (53, 482349), (103, 248199), (159, 160783), (223, 114639), (309, 82733), (371, 68907), (669, 38213), (721, 35457), (1113, 22969), (1561, 16377), (2163, 11819), (4683, 5459)]