19505101

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{137}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 25078464

約数和(自身を除く): 5573363

約数列:

[1, 7, 11, 43, 77, 137, 301, 473, 959, 1507, 1849, 3311, 5891, 10549, 12943, 20339, 41237, 64801, 142373, 253313, 453607, 1773191, 2786443, 19505101]

約数ペア:

[(1, 19505101), (7, 2786443), (11, 1773191), (43, 453607), (77, 253313), (137, 142373), (301, 64801), (473, 41237), (959, 20339), (1507, 12943), (1849, 10549), (3311, 5891)]