21749188

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 42865200

約数和(自身を除く): 21116012

約数列:

[1, 2, 4, 17, 29, 34, 41, 58, 68, 82, 116, 164, 269, 493, 538, 697, 986, 1076, 1189, 1394, 1972, 2378, 2788, 4573, 4756, 7801, 9146, 11029, 15602, 18292, 20213, 22058, 31204, 40426, 44116, 80852, 132617, 187493, 265234, 319841, 374986, 530468, 639682, 749972, 1279364, 5437297, 10874594, 21749188]

約数ペア:

[(1, 21749188), (2, 10874594), (4, 5437297), (17, 1279364), (29, 749972), (34, 639682), (41, 530468), (58, 374986), (68, 319841), (82, 265234), (116, 187493), (164, 132617), (269, 80852), (493, 44116), (538, 40426), (697, 31204), (986, 22058), (1076, 20213), (1189, 18292), (1394, 15602), (1972, 11029), (2378, 9146), (2788, 7801), (4573, 4756)]