20428473

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 30886912

約数和(自身を除く): 10458439

約数列:

[1, 3, 13, 31, 39, 61, 93, 183, 277, 403, 793, 831, 1209, 1891, 2379, 3601, 5673, 8587, 10803, 16897, 24583, 25761, 50691, 73749, 111631, 219661, 334893, 523807, 658983, 1571421, 6809491, 20428473]

約数ペア:

[(1, 20428473), (3, 6809491), (13, 1571421), (31, 658983), (39, 523807), (61, 334893), (93, 219661), (183, 111631), (277, 73749), (403, 50691), (793, 25761), (831, 24583), (1209, 16897), (1891, 10803), (2379, 8587), (3601, 5673)]