15718521

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 26797056

約数和(自身を除く): 11078535

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 103, 129, 169, 273, 301, 309, 507, 559, 721, 903, 1183, 1339, 1677, 2163, 3549, 3913, 4017, 4429, 7267, 9373, 11739, 13287, 17407, 21801, 28119, 31003, 50869, 52221, 57577, 93009, 121849, 152607, 172731, 365547, 403039, 748501, 1209117, 2245503, 5239507, 15718521]

約数ペア:

[(1, 15718521), (3, 5239507), (7, 2245503), (13, 1209117), (21, 748501), (39, 403039), (43, 365547), (91, 172731), (103, 152607), (129, 121849), (169, 93009), (273, 57577), (301, 52221), (309, 50869), (507, 31003), (559, 28119), (721, 21801), (903, 17407), (1183, 13287), (1339, 11739), (1677, 9373), (2163, 7267), (3549, 4429), (3913, 4017)]