42155721

素因数分解:

$3^4\times {\mathrm{653}}^1\times {\mathrm{797}}^1$

素因数の和:1462

約数の個数: 20

約数和(自身を含む): 63148932

約数和(自身を除く): 20993211

約数列:

[1, 3, 9, 27, 81, 653, 797, 1959, 2391, 5877, 7173, 17631, 21519, 52893, 64557, 520441, 1561323, 4683969, 14051907, 42155721]

約数ペア:

[(1, 42155721), (3, 14051907), (9, 4683969), (27, 1561323), (81, 520441), (653, 64557), (797, 52893), (1959, 21519), (2391, 17631), (5877, 7173)]