20921304

素因数分解:

$2^3\times 3^1\times {\mathrm{839}}^1\times {\mathrm{1039}}^1$

素因数の和:1887

約数の個数: 32

約数和(自身を含む): 52416000

約数和(自身を除く): 31494696

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 839, 1039, 1678, 2078, 2517, 3117, 3356, 4156, 5034, 6234, 6712, 8312, 10068, 12468, 20136, 24936, 871721, 1743442, 2615163, 3486884, 5230326, 6973768, 10460652, 20921304]

約数ペア:

[(1, 20921304), (2, 10460652), (3, 6973768), (4, 5230326), (6, 3486884), (8, 2615163), (12, 1743442), (24, 871721), (839, 24936), (1039, 20136), (1678, 12468), (2078, 10068), (2517, 8312), (3117, 6712), (3356, 6234), (4156, 5034)]