21738548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3907}}^1$

素因数の和:4031

約数の個数: 24

約数和(自身を含む): 41362272

約数和(自身を除く): 19623724

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3907, 5564, 7814, 15628, 50791, 101582, 203164, 418049, 836098, 1672196, 5434637, 10869274, 21738548]

約数ペア:

[(1, 21738548), (2, 10869274), (4, 5434637), (13, 1672196), (26, 836098), (52, 418049), (107, 203164), (214, 101582), (428, 50791), (1391, 15628), (2782, 7814), (3907, 5564)]