21467105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 29842560

約数和(自身を除く): 8375455

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 313, 319, 473, 1247, 1565, 1595, 2365, 3443, 6235, 9077, 13459, 13717, 17215, 45385, 67295, 68585, 99847, 148049, 390311, 499235, 740245, 1951555, 4293421, 21467105]

約数ペア:

[(1, 21467105), (5, 4293421), (11, 1951555), (29, 740245), (43, 499235), (55, 390311), (145, 148049), (215, 99847), (313, 68585), (319, 67295), (473, 45385), (1247, 17215), (1565, 13717), (1595, 13459), (2365, 9077), (3443, 6235)]