20641936

素因数分解:

$2^4\times 7^2\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:368

約数の個数: 60

約数和(自身を含む): 47136492

約数和(自身を除く): 26494556

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 113, 196, 226, 233, 392, 452, 466, 784, 791, 904, 932, 1582, 1631, 1808, 1864, 3164, 3262, 3728, 5537, 6328, 6524, 11074, 11417, 12656, 13048, 22148, 22834, 26096, 26329, 44296, 45668, 52658, 88592, 91336, 105316, 182672, 184303, 210632, 368606, 421264, 737212, 1290121, 1474424, 2580242, 2948848, 5160484, 10320968, 20641936]

約数ペア:

[(1, 20641936), (2, 10320968), (4, 5160484), (7, 2948848), (8, 2580242), (14, 1474424), (16, 1290121), (28, 737212), (49, 421264), (56, 368606), (98, 210632), (112, 184303), (113, 182672), (196, 105316), (226, 91336), (233, 88592), (392, 52658), (452, 45668), (466, 44296), (784, 26329), (791, 26096), (904, 22834), (932, 22148), (1582, 13048), (1631, 12656), (1808, 11417), (1864, 11074), (3164, 6524), (3262, 6328), (3728, 5537)]