20784316

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6569}}^1$

素因数の和:6693

約数の個数: 24

約数和(自身を含む): 41942880

約数和(自身を除く): 21158564

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6569, 13138, 26276, 45983, 91966, 183932, 742297, 1484594, 2969188, 5196079, 10392158, 20784316]

約数ペア:

[(1, 20784316), (2, 10392158), (4, 5196079), (7, 2969188), (14, 1484594), (28, 742297), (113, 183932), (226, 91966), (452, 45983), (791, 26276), (1582, 13138), (3164, 6569)]