20705976

素因数分解:

$2^3\times 3^3\times {\mathrm{257}}^1\times {\mathrm{373}}^1$

素因数の和:645

約数の個数: 64

約数和(自身を含む): 57895200

約数和(自身を除く): 37189224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 257, 373, 514, 746, 771, 1028, 1119, 1492, 1542, 2056, 2238, 2313, 2984, 3084, 3357, 4476, 4626, 6168, 6714, 6939, 8952, 9252, 10071, 13428, 13878, 18504, 20142, 26856, 27756, 40284, 55512, 80568, 95861, 191722, 287583, 383444, 575166, 766888, 862749, 1150332, 1725498, 2300664, 2588247, 3450996, 5176494, 6901992, 10352988, 20705976]

約数ペア:

[(1, 20705976), (2, 10352988), (3, 6901992), (4, 5176494), (6, 3450996), (8, 2588247), (9, 2300664), (12, 1725498), (18, 1150332), (24, 862749), (27, 766888), (36, 575166), (54, 383444), (72, 287583), (108, 191722), (216, 95861), (257, 80568), (373, 55512), (514, 40284), (746, 27756), (771, 26856), (1028, 20142), (1119, 18504), (1492, 13878), (1542, 13428), (2056, 10071), (2238, 9252), (2313, 8952), (2984, 6939), (3084, 6714), (3357, 6168), (4476, 4626)]