21977060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156979}}^1$

素因数の和:156995

約数の個数: 24

約数和(自身を含む): 52745280

約数和(自身を除く): 30768220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156979, 313958, 627916, 784895, 1098853, 1569790, 2197706, 3139580, 4395412, 5494265, 10988530, 21977060]

約数ペア:

[(1, 21977060), (2, 10988530), (4, 5494265), (5, 4395412), (7, 3139580), (10, 2197706), (14, 1569790), (20, 1098853), (28, 784895), (35, 627916), (70, 313958), (140, 156979)]