21241330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 24263822

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 37, 55, 74, 85, 110, 170, 185, 187, 307, 370, 374, 407, 614, 629, 814, 935, 1258, 1535, 1870, 2035, 3070, 3145, 3377, 4070, 5219, 6290, 6754, 6919, 10438, 11359, 13838, 16885, 22718, 26095, 33770, 34595, 52190, 56795, 57409, 69190, 113590, 114818, 124949, 193103, 249898, 287045, 386206, 574090, 624745, 965515, 1249490, 1931030, 2124133, 4248266, 10620665, 21241330]

約数ペア:

[(1, 21241330), (2, 10620665), (5, 4248266), (10, 2124133), (11, 1931030), (17, 1249490), (22, 965515), (34, 624745), (37, 574090), (55, 386206), (74, 287045), (85, 249898), (110, 193103), (170, 124949), (185, 114818), (187, 113590), (307, 69190), (370, 57409), (374, 56795), (407, 52190), (614, 34595), (629, 33770), (814, 26095), (935, 22718), (1258, 16885), (1535, 13838), (1870, 11359), (2035, 10438), (3070, 6919), (3145, 6754), (3377, 6290), (4070, 5219)]