19705756

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{827}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 42287616

約数和(自身を除く): 22581860

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 74, 92, 148, 161, 259, 322, 518, 644, 827, 851, 1036, 1654, 1702, 3308, 3404, 5789, 5957, 11578, 11914, 19021, 23156, 23828, 30599, 38042, 61198, 76084, 122396, 133147, 214193, 266294, 428386, 532588, 703777, 856772, 1407554, 2815108, 4926439, 9852878, 19705756]

約数ペア:

[(1, 19705756), (2, 9852878), (4, 4926439), (7, 2815108), (14, 1407554), (23, 856772), (28, 703777), (37, 532588), (46, 428386), (74, 266294), (92, 214193), (148, 133147), (161, 122396), (259, 76084), (322, 61198), (518, 38042), (644, 30599), (827, 23828), (851, 23156), (1036, 19021), (1654, 11914), (1702, 11578), (3308, 5957), (3404, 5789)]