20713528067421

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51913604179}}^1$

素因数の和:51913604208

約数の個数: 16

約数和(自身を含む): 33224706675200

約数和(自身を除く): 12511178607779

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51913604179, 155740812537, 363395229253, 986358479401, 1090185687759, 2959075438203, 6904509355807, 20713528067421]

約数ペア:

[(1, 20713528067421), (3, 6904509355807), (7, 2959075438203), (19, 1090185687759), (21, 986358479401), (57, 363395229253), (133, 155740812537), (399, 51913604179)]