1388974419

素因数分解:

$3^3\times 7^1\times {\mathrm{7349071}}^1$

素因数の和:7349087

約数の個数: 16

約数和(自身を含む): 2351703040

約数和(自身を除く): 962728621

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 7349071, 22047213, 51443497, 66141639, 154330491, 198424917, 462991473, 1388974419]

約数ペア:

[(1, 1388974419), (3, 462991473), (7, 198424917), (9, 154330491), (21, 66141639), (27, 51443497), (63, 22047213), (189, 7349071)]