21132618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{270931}}^1$

素因数の和:270949

約数の個数: 16

約数和(自身を含む): 45516576

約数和(自身を除く): 24383958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 270931, 541862, 812793, 1625586, 3522103, 7044206, 10566309, 21132618]

約数ペア:

[(1, 21132618), (2, 10566309), (3, 7044206), (6, 3522103), (13, 1625586), (26, 812793), (39, 541862), (78, 270931)]