19666437

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{751}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 31764480

約数和(自身を除く): 12098043

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 609, 751, 903, 1247, 2253, 3741, 5257, 8729, 15771, 21779, 26187, 32293, 65337, 96879, 152453, 226051, 457359, 678153, 936497, 2809491, 6555479, 19666437]

約数ペア:

[(1, 19666437), (3, 6555479), (7, 2809491), (21, 936497), (29, 678153), (43, 457359), (87, 226051), (129, 152453), (203, 96879), (301, 65337), (609, 32293), (751, 26187), (903, 21779), (1247, 15771), (2253, 8729), (3741, 5257)]