21705690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7459}}^1$

素因数の和:7566

約数の個数: 32

約数和(自身を含む): 52637760

約数和(自身を除く): 30932070

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 97, 194, 291, 485, 582, 970, 1455, 2910, 7459, 14918, 22377, 37295, 44754, 74590, 111885, 223770, 723523, 1447046, 2170569, 3617615, 4341138, 7235230, 10852845, 21705690]

約数ペア:

[(1, 21705690), (2, 10852845), (3, 7235230), (5, 4341138), (6, 3617615), (10, 2170569), (15, 1447046), (30, 723523), (97, 223770), (194, 111885), (291, 74590), (485, 44754), (582, 37295), (970, 22377), (1455, 14918), (2910, 7459)]