29871891

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3461}}^1$

素因数の和:3611

約数の個数: 24

約数和(自身を含む): 49686624

約数和(自身を除く): 19814733

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2877, 3461, 8631, 10383, 24227, 31149, 72681, 218043, 474157, 1422471, 3319099, 4267413, 9957297, 29871891]

約数ペア:

[(1, 29871891), (3, 9957297), (7, 4267413), (9, 3319099), (21, 1422471), (63, 474157), (137, 218043), (411, 72681), (959, 31149), (1233, 24227), (2877, 10383), (3461, 8631)]