19986930

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1621}}^1$

素因数の和:1771

約数の個数: 48

約数和(自身を含む): 52377624

約数和(自身を除く): 32390694

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 685, 822, 1233, 1370, 1621, 2055, 2466, 3242, 4110, 4863, 6165, 8105, 9726, 12330, 14589, 16210, 24315, 29178, 48630, 72945, 145890, 222077, 444154, 666231, 1110385, 1332462, 1998693, 2220770, 3331155, 3997386, 6662310, 9993465, 19986930]

約数ペア:

[(1, 19986930), (2, 9993465), (3, 6662310), (5, 3997386), (6, 3331155), (9, 2220770), (10, 1998693), (15, 1332462), (18, 1110385), (30, 666231), (45, 444154), (90, 222077), (137, 145890), (274, 72945), (411, 48630), (685, 29178), (822, 24315), (1233, 16210), (1370, 14589), (1621, 12330), (2055, 9726), (2466, 8105), (3242, 6165), (4110, 4863)]