19979154

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{85381}}^1$

素因数の和:85402

約数の個数: 24

約数和(自身を含む): 46618572

約数和(自身を除く): 26639418

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 85381, 170762, 256143, 512286, 768429, 1109953, 1536858, 2219906, 3329859, 6659718, 9989577, 19979154]

約数ペア:

[(1, 19979154), (2, 9989577), (3, 6659718), (6, 3329859), (9, 2219906), (13, 1536858), (18, 1109953), (26, 768429), (39, 512286), (78, 256143), (117, 170762), (234, 85381)]