18789199

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 5160881

約数列:

[1, 11, 13, 17, 59, 131, 143, 187, 221, 649, 767, 1003, 1441, 1703, 2227, 2431, 7729, 8437, 11033, 13039, 18733, 24497, 28951, 85019, 100477, 131393, 143429, 318461, 1105247, 1445323, 1708109, 18789199]

約数ペア:

[(1, 18789199), (11, 1708109), (13, 1445323), (17, 1105247), (59, 318461), (131, 143429), (143, 131393), (187, 100477), (221, 85019), (649, 28951), (767, 24497), (1003, 18733), (1441, 13039), (1703, 11033), (2227, 8437), (2431, 7729)]