21479205

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{373}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 37699200

約数和(自身を除く): 16219995

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 349, 373, 1047, 1119, 1745, 1865, 3839, 4103, 5235, 5595, 11517, 12309, 19195, 20515, 57585, 61545, 130177, 390531, 650885, 1431947, 1952655, 4295841, 7159735, 21479205]

約数ペア:

[(1, 21479205), (3, 7159735), (5, 4295841), (11, 1952655), (15, 1431947), (33, 650885), (55, 390531), (165, 130177), (349, 61545), (373, 57585), (1047, 20515), (1119, 19195), (1745, 12309), (1865, 11517), (3839, 5595), (4103, 5235)]