56721812

素因数分解:

$2^2\times 7^2\times {\mathrm{289397}}^1$

素因数の和:289415

約数の個数: 18

約数和(自身を含む): 115469802

約数和(自身を除く): 58747990

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 289397, 578794, 1157588, 2025779, 4051558, 8103116, 14180453, 28360906, 56721812]

約数ペア:

[(1, 56721812), (2, 28360906), (4, 14180453), (7, 8103116), (14, 4051558), (28, 2025779), (49, 1157588), (98, 578794), (196, 289397)]