21871566

素因数分解:

$2^1\times 3^3\times {\mathrm{405029}}^1$

素因数の和:405040

約数の個数: 16

約数和(自身を含む): 48603600

約数和(自身を除く): 26732034

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 405029, 810058, 1215087, 2430174, 3645261, 7290522, 10935783, 21871566]

約数ペア:

[(1, 21871566), (2, 10935783), (3, 7290522), (6, 3645261), (9, 2430174), (18, 1215087), (27, 810058), (54, 405029)]