19687108

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 41810944

約数和(自身を除く): 22123836

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 62, 74, 124, 148, 217, 259, 434, 518, 613, 868, 1036, 1147, 1226, 2294, 2452, 4291, 4588, 8029, 8582, 16058, 17164, 19003, 22681, 32116, 38006, 45362, 76012, 90724, 133021, 158767, 266042, 317534, 532084, 635068, 703111, 1406222, 2812444, 4921777, 9843554, 19687108]

約数ペア:

[(1, 19687108), (2, 9843554), (4, 4921777), (7, 2812444), (14, 1406222), (28, 703111), (31, 635068), (37, 532084), (62, 317534), (74, 266042), (124, 158767), (148, 133021), (217, 90724), (259, 76012), (434, 45362), (518, 38006), (613, 32116), (868, 22681), (1036, 19003), (1147, 17164), (1226, 16058), (2294, 8582), (2452, 8029), (4291, 4588)]