19413541

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 25256448

約数和(自身を除く): 5842907

約数列:

[1, 7, 17, 23, 41, 119, 161, 173, 287, 391, 697, 943, 1211, 2737, 2941, 3979, 4879, 6601, 7093, 16031, 20587, 27853, 49651, 67643, 112217, 120581, 163139, 473501, 844067, 1141973, 2773363, 19413541]

約数ペア:

[(1, 19413541), (7, 2773363), (17, 1141973), (23, 844067), (41, 473501), (119, 163139), (161, 120581), (173, 112217), (287, 67643), (391, 49651), (697, 27853), (943, 20587), (1211, 16031), (2737, 7093), (2941, 6601), (3979, 4879)]