21068577

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{419}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 31536960

約数和(自身を除く): 10468383

約数列:

[1, 3, 9, 37, 111, 151, 333, 419, 453, 1257, 1359, 3771, 5587, 15503, 16761, 46509, 50283, 63269, 139527, 189807, 569421, 2340953, 7022859, 21068577]

約数ペア:

[(1, 21068577), (3, 7022859), (9, 2340953), (37, 569421), (111, 189807), (151, 139527), (333, 63269), (419, 50283), (453, 46509), (1257, 16761), (1359, 15503), (3771, 5587)]