20291236

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 42499072

約数和(自身を除く): 22207836

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 97, 124, 194, 217, 241, 388, 434, 482, 679, 868, 964, 1358, 1687, 2716, 3007, 3374, 6014, 6748, 7471, 12028, 14942, 21049, 23377, 29884, 42098, 46754, 52297, 84196, 93508, 104594, 163639, 209188, 327278, 654556, 724687, 1449374, 2898748, 5072809, 10145618, 20291236]

約数ペア:

[(1, 20291236), (2, 10145618), (4, 5072809), (7, 2898748), (14, 1449374), (28, 724687), (31, 654556), (62, 327278), (97, 209188), (124, 163639), (194, 104594), (217, 93508), (241, 84196), (388, 52297), (434, 46754), (482, 42098), (679, 29884), (868, 23377), (964, 21049), (1358, 14942), (1687, 12028), (2716, 7471), (3007, 6748), (3374, 6014)]