21083979

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 33172480

約数和(自身を除く): 12088501

約数列:

[1, 3, 7, 21, 61, 109, 151, 183, 327, 427, 453, 763, 1057, 1281, 2289, 3171, 6649, 9211, 16459, 19947, 27633, 46543, 49377, 64477, 115213, 139629, 193431, 345639, 1003999, 3011997, 7027993, 21083979]

約数ペア:

[(1, 21083979), (3, 7027993), (7, 3011997), (21, 1003999), (61, 345639), (109, 193431), (151, 139629), (183, 115213), (327, 64477), (427, 49377), (453, 46543), (763, 27633), (1057, 19947), (1281, 16459), (2289, 9211), (3171, 6649)]