211827

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 361152

約数和(自身を除く): 149325

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 131, 147, 231, 393, 539, 917, 1441, 1617, 2751, 4323, 6419, 10087, 19257, 30261, 70609, 211827]

約数ペア:

[(1, 211827), (3, 70609), (7, 30261), (11, 19257), (21, 10087), (33, 6419), (49, 4323), (77, 2751), (131, 1617), (147, 1441), (231, 917), (393, 539)]