21167881245

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3952919}}^1$

素因数の和:3952954

約数の個数: 48

約数和(自身を含む): 44399197440

約数和(自身を除く): 23231316195

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 5355, 3952919, 11858757, 19764595, 27670433, 35576271, 59293785, 67199623, 83011299, 138352165, 177881355, 201598869, 249033897, 335998115, 415056495, 470397361, 604796607, 1007994345, 1245169485, 1411192083, 2351986805, 3023983035, 4233576249, 7055960415, 21167881245]

約数ペア:

[(1, 21167881245), (3, 7055960415), (5, 4233576249), (7, 3023983035), (9, 2351986805), (15, 1411192083), (17, 1245169485), (21, 1007994345), (35, 604796607), (45, 470397361), (51, 415056495), (63, 335998115), (85, 249033897), (105, 201598869), (119, 177881355), (153, 138352165), (255, 83011299), (315, 67199623), (357, 59293785), (595, 35576271), (765, 27670433), (1071, 19764595), (1785, 11858757), (5355, 3952919)]