19966492

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2887}}^1$

素因数の和:2930

約数の個数: 48

約数和(自身を含む): 45283840

約数和(自身を除く): 25317348

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 2887, 3458, 5774, 6916, 11548, 20209, 37531, 40418, 54853, 75062, 80836, 109706, 150124, 219412, 262717, 383971, 525434, 713089, 767942, 1050868, 1426178, 1535884, 2852356, 4991623, 9983246, 19966492]

約数ペア:

[(1, 19966492), (2, 9983246), (4, 4991623), (7, 2852356), (13, 1535884), (14, 1426178), (19, 1050868), (26, 767942), (28, 713089), (38, 525434), (52, 383971), (76, 262717), (91, 219412), (133, 150124), (182, 109706), (247, 80836), (266, 75062), (364, 54853), (494, 40418), (532, 37531), (988, 20209), (1729, 11548), (2887, 6916), (3458, 5774)]