81972121

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{9421}}^1$

素因数の和:9552

約数の個数: 16

約数和(自身を含む): 103114368

約数和(自身を除く): 21142247

約数列:

[1, 7, 11, 77, 113, 791, 1243, 8701, 9421, 65947, 103631, 725417, 1064573, 7452011, 11710303, 81972121]

約数ペア:

[(1, 81972121), (7, 11710303), (11, 7452011), (77, 1064573), (113, 725417), (791, 103631), (1243, 65947), (8701, 9421)]