21276365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{2953}}^1$

素因数の和:3100

約数の個数: 16

約数和(自身を含む): 28074816

約数和(自身を除く): 6798451

約数列:

[1, 5, 11, 55, 131, 655, 1441, 2953, 7205, 14765, 32483, 162415, 386843, 1934215, 4255273, 21276365]

約数ペア:

[(1, 21276365), (5, 4255273), (11, 1934215), (55, 386843), (131, 162415), (655, 32483), (1441, 14765), (2953, 7205)]