28386904

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38993}}^1$

素因数の和:39019

約数の個数: 32

約数和(自身を含む): 65509920

約数和(自身を除く): 37123016

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 38993, 77986, 155972, 272951, 311944, 506909, 545902, 1013818, 1091804, 2027636, 2183608, 3548363, 4055272, 7096726, 14193452, 28386904]

約数ペア:

[(1, 28386904), (2, 14193452), (4, 7096726), (7, 4055272), (8, 3548363), (13, 2183608), (14, 2027636), (26, 1091804), (28, 1013818), (52, 545902), (56, 506909), (91, 311944), (104, 272951), (182, 155972), (364, 77986), (728, 38993)]