81657657

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{191}}^1\times {\mathrm{709}}^1$

素因数の和:973

約数の個数: 24

約数和(自身を含む): 120506880

約数和(自身を除く): 38849223

約数列:

[1, 3, 9, 67, 191, 201, 573, 603, 709, 1719, 2127, 6381, 12797, 38391, 47503, 115173, 135419, 142509, 406257, 427527, 1218771, 9073073, 27219219, 81657657]

約数ペア:

[(1, 81657657), (3, 27219219), (9, 9073073), (67, 1218771), (191, 427527), (201, 406257), (573, 142509), (603, 135419), (709, 115173), (1719, 47503), (2127, 38391), (6381, 12797)]