19812564

素因数分解:

$2^2\times 3^2\times {\mathrm{101}}^1\times {\mathrm{5449}}^1$

素因数の和:5560

約数の個数: 36

約数和(自身を含む): 50586900

約数和(自身を除く): 30774336

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 101, 202, 303, 404, 606, 909, 1212, 1818, 3636, 5449, 10898, 16347, 21796, 32694, 49041, 65388, 98082, 196164, 550349, 1100698, 1651047, 2201396, 3302094, 4953141, 6604188, 9906282, 19812564]

約数ペア:

[(1, 19812564), (2, 9906282), (3, 6604188), (4, 4953141), (6, 3302094), (9, 2201396), (12, 1651047), (18, 1100698), (36, 550349), (101, 196164), (202, 98082), (303, 65388), (404, 49041), (606, 32694), (909, 21796), (1212, 16347), (1818, 10898), (3636, 5449)]