17995731

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 26869248

約数和(自身を除く): 8873517

約数列:

[1, 3, 13, 39, 67, 71, 97, 201, 213, 291, 871, 923, 1261, 2613, 2769, 3783, 4757, 6499, 6887, 14271, 19497, 20661, 61841, 84487, 89531, 185523, 253461, 268593, 461429, 1384287, 5998577, 17995731]

約数ペア:

[(1, 17995731), (3, 5998577), (13, 1384287), (39, 461429), (67, 268593), (71, 253461), (97, 185523), (201, 89531), (213, 84487), (291, 61841), (871, 20661), (923, 19497), (1261, 14271), (2613, 6887), (2769, 6499), (3783, 4757)]