21709023

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:911

約数の個数: 32

約数和(自身を含む): 35059200

約数和(自身を除く): 13350177

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 609, 829, 903, 1247, 2487, 3741, 5803, 8729, 17409, 24041, 26187, 35647, 72123, 106941, 168287, 249529, 504861, 748587, 1033763, 3101289, 7236341, 21709023]

約数ペア:

[(1, 21709023), (3, 7236341), (7, 3101289), (21, 1033763), (29, 748587), (43, 504861), (87, 249529), (129, 168287), (203, 106941), (301, 72123), (609, 35647), (829, 26187), (903, 24041), (1247, 17409), (2487, 8729), (3741, 5803)]