21037161

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2477}}^1$

素因数の和:2648

約数の個数: 16

約数和(自身を含む): 29736000

約数和(自身を除く): 8698839

約数列:

[1, 3, 19, 57, 149, 447, 2477, 2831, 7431, 8493, 47063, 141189, 369073, 1107219, 7012387, 21037161]

約数ペア:

[(1, 21037161), (3, 7012387), (19, 1107219), (57, 369073), (149, 141189), (447, 47063), (2477, 8493), (2831, 7431)]