20129376981

素因数分解:

$3^1\times 7^1\times {\mathrm{62401}}^1\times {\mathrm{15361}}^1$

素因数の和:77772

約数の個数: 16

約数和(自身を含む): 30675824768

約数和(自身を除く): 10546447787

約数列:

[1, 3, 7, 21, 15361, 46083, 62401, 107527, 187203, 322581, 436807, 1310421, 958541761, 2875625283, 6709792327, 20129376981]

約数ペア:

[(1, 20129376981), (3, 6709792327), (7, 2875625283), (21, 958541761), (15361, 1310421), (46083, 436807), (62401, 322581), (107527, 187203)]