211237551

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{10069}}^1$

素因数の和:10125

約数の個数: 40

約数和(自身を含む): 370414880

約数和(自身を除く): 159177329

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 259, 333, 567, 777, 999, 2331, 2997, 6993, 10069, 20979, 30207, 70483, 90621, 211449, 271863, 372553, 634347, 815589, 1117659, 1903041, 2607871, 3352977, 5709123, 7823613, 10058931, 23470839, 30176793, 70412517, 211237551]

約数ペア:

[(1, 211237551), (3, 70412517), (7, 30176793), (9, 23470839), (21, 10058931), (27, 7823613), (37, 5709123), (63, 3352977), (81, 2607871), (111, 1903041), (189, 1117659), (259, 815589), (333, 634347), (567, 372553), (777, 271863), (999, 211449), (2331, 90621), (2997, 70483), (6993, 30207), (10069, 20979)]