17781023

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 19758816

約数和(自身を除く): 1977793

約数列:

[1, 13, 53, 131, 197, 689, 1703, 2561, 6943, 10441, 25807, 90259, 135733, 335491, 1367771, 17781023]

約数ペア:

[(1, 17781023), (13, 1367771), (53, 335491), (131, 135733), (197, 90259), (689, 25807), (1703, 10441), (2561, 6943)]