15490881

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1877}}^1$

素因数の和:2021

約数の個数: 24

約数和(自身を含む): 25781184

約数和(自身を除く): 10290303

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 1877, 2751, 5631, 8253, 13139, 16893, 39417, 118251, 245887, 737661, 1721209, 2212983, 5163627, 15490881]

約数ペア:

[(1, 15490881), (3, 5163627), (7, 2212983), (9, 1721209), (21, 737661), (63, 245887), (131, 118251), (393, 39417), (917, 16893), (1179, 13139), (1877, 8253), (2751, 5631)]