18700955

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1787}}^1$

素因数の和:1835

約数の個数: 32

約数和(自身を含む): 28836864

約数和(自身を除く): 10135909

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 1787, 2093, 8935, 10465, 12509, 23231, 41101, 62545, 116155, 162617, 205505, 287707, 534313, 813085, 1438535, 2671565, 3740191, 18700955]

約数ペア:

[(1, 18700955), (5, 3740191), (7, 2671565), (13, 1438535), (23, 813085), (35, 534313), (65, 287707), (91, 205505), (115, 162617), (161, 116155), (299, 62545), (455, 41101), (805, 23231), (1495, 12509), (1787, 10465), (2093, 8935)]