21170638

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:252

約数の個数: 32

約数和(自身を含む): 34292160

約数和(自身を除く): 13121522

約数列:

[1, 2, 29, 53, 58, 71, 97, 106, 142, 194, 1537, 2059, 2813, 3074, 3763, 4118, 5141, 5626, 6887, 7526, 10282, 13774, 109127, 149089, 199723, 218254, 298178, 365011, 399446, 730022, 10585319, 21170638]

約数ペア:

[(1, 21170638), (2, 10585319), (29, 730022), (53, 399446), (58, 365011), (71, 298178), (97, 218254), (106, 199723), (142, 149089), (194, 109127), (1537, 13774), (2059, 10282), (2813, 7526), (3074, 6887), (3763, 5626), (4118, 5141)]