15865017

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 25006080

約数和(自身を除く): 9141063

約数列:

[1, 3, 7, 21, 73, 79, 131, 219, 237, 393, 511, 553, 917, 1533, 1659, 2751, 5767, 9563, 10349, 17301, 28689, 31047, 40369, 66941, 72443, 121107, 200823, 217329, 755477, 2266431, 5288339, 15865017]

約数ペア:

[(1, 15865017), (3, 5288339), (7, 2266431), (21, 755477), (73, 217329), (79, 200823), (131, 121107), (219, 72443), (237, 66941), (393, 40369), (511, 31047), (553, 28689), (917, 17301), (1533, 10349), (1659, 9563), (2751, 5767)]