1285294563

素因数分解:

$3^2\times 7^1\times {\mathrm{20401501}}^1$

素因数の和:20401514

約数の個数: 12

約数和(自身を含む): 2121756208

約数和(自身を除く): 836461645

約数列:

[1, 3, 7, 9, 21, 63, 20401501, 61204503, 142810507, 183613509, 428431521, 1285294563]

約数ペア:

[(1, 1285294563), (3, 428431521), (7, 183613509), (9, 142810507), (21, 61204503), (63, 20401501)]