20728045371

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{121189}}^1$

素因数の和:121347

約数の個数: 32

約数和(自身を含む): 30993615360

約数和(自身を除く): 10265569989

約数列:

[1, 3, 11, 33, 71, 73, 213, 219, 781, 803, 2343, 2409, 5183, 15549, 57013, 121189, 171039, 363567, 1333079, 3999237, 8604419, 8846797, 25813257, 26540391, 94648609, 97314767, 283945827, 291944301, 628122587, 1884367761, 6909348457, 20728045371]

約数ペア:

[(1, 20728045371), (3, 6909348457), (11, 1884367761), (33, 628122587), (71, 291944301), (73, 283945827), (213, 97314767), (219, 94648609), (781, 26540391), (803, 25813257), (2343, 8846797), (2409, 8604419), (5183, 3999237), (15549, 1333079), (57013, 363567), (121189, 171039)]