217156731

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{1283}}^1$

素因数の和:1543

約数の個数: 32

約数和(自身を含む): 331333632

約数和(自身を除く): 114176901

約数列:

[1, 3, 11, 23, 33, 69, 223, 253, 669, 759, 1283, 2453, 3849, 5129, 7359, 14113, 15387, 29509, 42339, 56419, 88527, 169257, 286109, 324599, 858327, 973797, 3147199, 6580507, 9441597, 19741521, 72385577, 217156731]

約数ペア:

[(1, 217156731), (3, 72385577), (11, 19741521), (23, 9441597), (33, 6580507), (69, 3147199), (223, 973797), (253, 858327), (669, 324599), (759, 286109), (1283, 169257), (2453, 88527), (3849, 56419), (5129, 42339), (7359, 29509), (14113, 15387)]