211370391

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{641}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 336510720

約数和(自身を除く): 125140329

約数列:

[1, 3, 9, 23, 27, 59, 69, 81, 177, 207, 243, 531, 621, 641, 1357, 1593, 1863, 1923, 4071, 4779, 5589, 5769, 12213, 14337, 14743, 17307, 36639, 37819, 44229, 51921, 109917, 113457, 132687, 155763, 329751, 340371, 398061, 869837, 1021113, 1194183, 2609511, 3063339, 3582549, 7828533, 9190017, 23485599, 70456797, 211370391]

約数ペア:

[(1, 211370391), (3, 70456797), (9, 23485599), (23, 9190017), (27, 7828533), (59, 3582549), (69, 3063339), (81, 2609511), (177, 1194183), (207, 1021113), (243, 869837), (531, 398061), (621, 340371), (641, 329751), (1357, 155763), (1593, 132687), (1863, 113457), (1923, 109917), (4071, 51921), (4779, 44229), (5589, 37819), (5769, 36639), (12213, 17307), (14337, 14743)]