19689684

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1493}}^1$

素因数の和:1664

約数の個数: 48

約数和(自身を含む): 52875648

約数和(自身を除く): 33185964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 157, 314, 471, 628, 942, 1099, 1493, 1884, 2198, 2986, 3297, 4396, 4479, 5972, 6594, 8958, 10451, 13188, 17916, 20902, 31353, 41804, 62706, 125412, 234401, 468802, 703203, 937604, 1406406, 1640807, 2812812, 3281614, 4922421, 6563228, 9844842, 19689684]

約数ペア:

[(1, 19689684), (2, 9844842), (3, 6563228), (4, 4922421), (6, 3281614), (7, 2812812), (12, 1640807), (14, 1406406), (21, 937604), (28, 703203), (42, 468802), (84, 234401), (157, 125412), (314, 62706), (471, 41804), (628, 31353), (942, 20902), (1099, 17916), (1493, 13188), (1884, 10451), (2198, 8958), (2986, 6594), (3297, 5972), (4396, 4479)]