21760312

素因数分解:

$2^3\times 7^2\times {\mathrm{55511}}^1$

素因数の和:55531

約数の個数: 24

約数和(自身を含む): 47462760

約数和(自身を除く): 25702448

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55511, 111022, 222044, 388577, 444088, 777154, 1554308, 2720039, 3108616, 5440078, 10880156, 21760312]

約数ペア:

[(1, 21760312), (2, 10880156), (4, 5440078), (7, 3108616), (8, 2720039), (14, 1554308), (28, 777154), (49, 444088), (56, 388577), (98, 222044), (196, 111022), (392, 55511)]