19935729

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2549}}^1$

素因数の和:2645

約数の個数: 24

約数和(自身を含む): 31824000

約数和(自身を除く): 11888271

約数列:

[1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2549, 2607, 7647, 7821, 22941, 28039, 84117, 201371, 252351, 604113, 1812339, 2215081, 6645243, 19935729]

約数ペア:

[(1, 19935729), (3, 6645243), (9, 2215081), (11, 1812339), (33, 604113), (79, 252351), (99, 201371), (237, 84117), (711, 28039), (869, 22941), (2549, 7821), (2607, 7647)]