21782068

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{10103}}^1$

素因数の和:10132

約数の個数: 36

約数和(自身を含む): 48377952

約数和(自身を除く): 26595884

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 10103, 20206, 40412, 70721, 111133, 141442, 222266, 282884, 444532, 495047, 777931, 990094, 1555862, 1980188, 3111724, 5445517, 10891034, 21782068]

約数ペア:

[(1, 21782068), (2, 10891034), (4, 5445517), (7, 3111724), (11, 1980188), (14, 1555862), (22, 990094), (28, 777931), (44, 495047), (49, 444532), (77, 282884), (98, 222266), (154, 141442), (196, 111133), (308, 70721), (539, 40412), (1078, 20206), (2156, 10103)]