21586040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{77093}}^1$

素因数の和:77111

約数の個数: 32

約数和(自身を含む): 55507680

約数和(自身を除く): 33921640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77093, 154186, 308372, 385465, 539651, 616744, 770930, 1079302, 1541860, 2158604, 2698255, 3083720, 4317208, 5396510, 10793020, 21586040]

約数ペア:

[(1, 21586040), (2, 10793020), (4, 5396510), (5, 4317208), (7, 3083720), (8, 2698255), (10, 2158604), (14, 1541860), (20, 1079302), (28, 770930), (35, 616744), (40, 539651), (56, 385465), (70, 308372), (140, 154186), (280, 77093)]