20560463

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 7018417

約数列:

[1, 7, 11, 17, 77, 113, 119, 139, 187, 791, 973, 1243, 1309, 1529, 1921, 2363, 8701, 10703, 13447, 15707, 16541, 21131, 25993, 109949, 147917, 172777, 181951, 267019, 1209439, 1869133, 2937209, 20560463]

約数ペア:

[(1, 20560463), (7, 2937209), (11, 1869133), (17, 1209439), (77, 267019), (113, 181951), (119, 172777), (139, 147917), (187, 109949), (791, 25993), (973, 21131), (1243, 16541), (1309, 15707), (1529, 13447), (1921, 10703), (2363, 8701)]