19912635

素因数分解:

$3^8\times 5^1\times {\mathrm{607}}^1$

素因数の和:636

約数の個数: 36

約数和(自身を含む): 35899968

約数和(自身を除く): 15987333

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 607, 729, 1215, 1821, 2187, 3035, 3645, 5463, 6561, 9105, 10935, 16389, 27315, 32805, 49167, 81945, 147501, 245835, 442503, 737505, 1327509, 2212515, 3982527, 6637545, 19912635]

約数ペア:

[(1, 19912635), (3, 6637545), (5, 3982527), (9, 2212515), (15, 1327509), (27, 737505), (45, 442503), (81, 245835), (135, 147501), (243, 81945), (405, 49167), (607, 32805), (729, 27315), (1215, 16389), (1821, 10935), (2187, 9105), (3035, 6561), (3645, 5463)]