2157651

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:675

約数の個数: 16

約数和(自身を含む): 3223200

約数和(自身を除く): 1065549

約数列:

[1, 3, 9, 27, 157, 471, 509, 1413, 1527, 4239, 4581, 13743, 79913, 239739, 719217, 2157651]

約数ペア:

[(1, 2157651), (3, 719217), (9, 239739), (27, 79913), (157, 13743), (471, 4581), (509, 4239), (1413, 1527)]