28722213

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7919}}^1$

素因数の和:7969

約数の個数: 24

約数和(自身を含む): 46126080

約数和(自身を除く): 17403867

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 7919, 23757, 71271, 102947, 245489, 308841, 736467, 926523, 2209401, 3191357, 9574071, 28722213]

約数ペア:

[(1, 28722213), (3, 9574071), (9, 3191357), (13, 2209401), (31, 926523), (39, 736467), (93, 308841), (117, 245489), (279, 102947), (403, 71271), (1209, 23757), (3627, 7919)]