20642636

素因数分解:

$2^2\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1129}}^1$

素因数の和:1793

約数の個数: 24

約数和(自身を含む): 41385120

約数和(自身を除く): 20742484

約数列:

[1, 2, 4, 7, 14, 28, 653, 1129, 1306, 2258, 2612, 4516, 4571, 7903, 9142, 15806, 18284, 31612, 737237, 1474474, 2948948, 5160659, 10321318, 20642636]

約数ペア:

[(1, 20642636), (2, 10321318), (4, 5160659), (7, 2948948), (14, 1474474), (28, 737237), (653, 31612), (1129, 18284), (1306, 15806), (2258, 9142), (2612, 7903), (4516, 4571)]