199422741

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1021}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 310818816

約数和(自身を除く): 111396075

約数列:

[1, 3, 7, 21, 71, 131, 213, 393, 497, 917, 1021, 1491, 2751, 3063, 7147, 9301, 21441, 27903, 65107, 72491, 133751, 195321, 217473, 401253, 507437, 936257, 1522311, 2808771, 9496321, 28488963, 66474247, 199422741]

約数ペア:

[(1, 199422741), (3, 66474247), (7, 28488963), (21, 9496321), (71, 2808771), (131, 1522311), (213, 936257), (393, 507437), (497, 401253), (917, 217473), (1021, 195321), (1491, 133751), (2751, 72491), (3063, 65107), (7147, 27903), (9301, 21441)]