19776185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1627}}^1$

素因数の和:1673

約数の個数: 32

約数和(自身を含む): 29538432

約数和(自身を除く): 9762247

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 1627, 2431, 8135, 12155, 17897, 21151, 27659, 89485, 105755, 138295, 232661, 304249, 359567, 1163305, 1521245, 1797835, 3955237, 19776185]

約数ペア:

[(1, 19776185), (5, 3955237), (11, 1797835), (13, 1521245), (17, 1163305), (55, 359567), (65, 304249), (85, 232661), (143, 138295), (187, 105755), (221, 89485), (715, 27659), (935, 21151), (1105, 17897), (1627, 12155), (2431, 8135)]