28131477

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 42799104

約数和(自身を除く): 14667627

約数列:

[1, 3, 11, 31, 33, 93, 107, 257, 321, 341, 771, 1023, 1177, 2827, 3317, 3531, 7967, 8481, 9951, 23901, 27499, 36487, 82497, 87637, 109461, 262911, 302489, 852469, 907467, 2557407, 9377159, 28131477]

約数ペア:

[(1, 28131477), (3, 9377159), (11, 2557407), (31, 907467), (33, 852469), (93, 302489), (107, 262911), (257, 109461), (321, 87637), (341, 82497), (771, 36487), (1023, 27499), (1177, 23901), (2827, 9951), (3317, 8481), (3531, 7967)]