21000201681

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1\times {\mathrm{23417}}^1$

素因数の和:23801

約数の個数: 32

約数和(自身を含む): 30025997568

約数和(自身を除く): 9025795887

約数列:

[1, 3, 23, 41, 69, 123, 317, 943, 951, 2829, 7291, 12997, 21873, 23417, 38991, 70251, 298931, 538591, 896793, 960097, 1615773, 2880291, 7423189, 22082231, 22269567, 66246693, 170733347, 304350749, 512200041, 913052247, 7000067227, 21000201681]

約数ペア:

[(1, 21000201681), (3, 7000067227), (23, 913052247), (41, 512200041), (69, 304350749), (123, 170733347), (317, 66246693), (943, 22269567), (951, 22082231), (2829, 7423189), (7291, 2880291), (12997, 1615773), (21873, 960097), (23417, 896793), (38991, 538591), (70251, 298931)]