15784279

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 20459520

約数和(自身を除く): 4675241

約数列:

[1, 7, 17, 23, 73, 79, 119, 161, 391, 511, 553, 1241, 1343, 1679, 1817, 2737, 5767, 8687, 9401, 11753, 12719, 28543, 30889, 40369, 98039, 132641, 199801, 216223, 686273, 928487, 2254897, 15784279]

約数ペア:

[(1, 15784279), (7, 2254897), (17, 928487), (23, 686273), (73, 216223), (79, 199801), (119, 132641), (161, 98039), (391, 40369), (511, 30889), (553, 28543), (1241, 12719), (1343, 11753), (1679, 9401), (1817, 8687), (2737, 5767)]