21702668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{857}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 41032992

約数和(自身を除く): 19330324

約数列:

[1, 2, 4, 13, 26, 52, 487, 857, 974, 1714, 1948, 3428, 6331, 11141, 12662, 22282, 25324, 44564, 417359, 834718, 1669436, 5425667, 10851334, 21702668]

約数ペア:

[(1, 21702668), (2, 10851334), (4, 5425667), (13, 1669436), (26, 834718), (52, 417359), (487, 44564), (857, 25324), (974, 22282), (1714, 12662), (1948, 11141), (3428, 6331)]