1019890263

素因数分解:

$3^1\times 7^3\times {\mathrm{991147}}^1$

素因数の和:991171

約数の個数: 16

約数和(自身を含む): 1585836800

約数和(自身を除く): 565946537

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 991147, 2973441, 6938029, 20814087, 48566203, 145698609, 339963421, 1019890263]

約数ペア:

[(1, 1019890263), (3, 339963421), (7, 145698609), (21, 48566203), (49, 20814087), (147, 6938029), (343, 2973441), (1029, 991147)]