21706564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{1013}}^1$

素因数の和:1515

約数の個数: 24

約数和(自身を含む): 41565888

約数和(自身を除く): 19859324

約数列:

[1, 2, 4, 11, 22, 44, 487, 974, 1013, 1948, 2026, 4052, 5357, 10714, 11143, 21428, 22286, 44572, 493331, 986662, 1973324, 5426641, 10853282, 21706564]

約数ペア:

[(1, 21706564), (2, 10853282), (4, 5426641), (11, 1973324), (22, 986662), (44, 493331), (487, 44572), (974, 22286), (1013, 21428), (1948, 11143), (2026, 10714), (4052, 5357)]