21197553

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{1481}}^1$

素因数の和:1864

約数の個数: 16

約数和(自身を含む): 30541056

約数和(自身を除く): 9343503

約数列:

[1, 3, 13, 39, 367, 1101, 1481, 4443, 4771, 14313, 19253, 57759, 543527, 1630581, 7065851, 21197553]

約数ペア:

[(1, 21197553), (3, 7065851), (13, 1630581), (39, 543527), (367, 57759), (1101, 19253), (1481, 14313), (4443, 4771)]