20890902

素因数分解:

$2^1\times 3^1\times {\mathrm{409}}^1\times {\mathrm{8513}}^1$

素因数の和:8927

約数の個数: 16

約数和(自身を含む): 41888880

約数和(自身を除く): 20997978

約数列:

[1, 2, 3, 6, 409, 818, 1227, 2454, 8513, 17026, 25539, 51078, 3481817, 6963634, 10445451, 20890902]

約数ペア:

[(1, 20890902), (2, 10445451), (3, 6963634), (6, 3481817), (409, 51078), (818, 25539), (1227, 17026), (2454, 8513)]