21106939

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4229}}^1$

素因数の和:4290

約数の個数: 16

約数和(自身を含む): 25989120

約数和(自身を除く): 4882181

約数列:

[1, 7, 23, 31, 161, 217, 713, 4229, 4991, 29603, 97267, 131099, 680869, 917693, 3015277, 21106939]

約数ペア:

[(1, 21106939), (7, 3015277), (23, 917693), (31, 680869), (161, 131099), (217, 97267), (713, 29603), (4229, 4991)]