19803465

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3637}}^1$

素因数の和:3670

約数の個数: 36

約数和(自身を含む): 37740612

約数和(自身を除く): 17937147

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 363, 495, 605, 1089, 1815, 3637, 5445, 10911, 18185, 32733, 40007, 54555, 120021, 163665, 200035, 360063, 440077, 600105, 1320231, 1800315, 2200385, 3960693, 6601155, 19803465]

約数ペア:

[(1, 19803465), (3, 6601155), (5, 3960693), (9, 2200385), (11, 1800315), (15, 1320231), (33, 600105), (45, 440077), (55, 360063), (99, 200035), (121, 163665), (165, 120021), (363, 54555), (495, 40007), (605, 32733), (1089, 18185), (1815, 10911), (3637, 5445)]