21624519

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6911}}^1$

素因数の和:7070

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 11553081

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6911, 20733, 48377, 145131, 1029739, 3089217, 7208173, 21624519]

約数ペア:

[(1, 21624519), (3, 7208173), (7, 3089217), (21, 1029739), (149, 145131), (447, 48377), (1043, 20733), (3129, 6911)]