16815771

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2243}}^1$

素因数の和:2280

約数の個数: 36

約数和(自身を含む): 29930472

約数和(自身を除く): 13114701

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2243, 2499, 6729, 7497, 15701, 20187, 38131, 47103, 109907, 114393, 141309, 266917, 329721, 343179, 800751, 989163, 1868419, 2402253, 5605257, 16815771]

約数ペア:

[(1, 16815771), (3, 5605257), (7, 2402253), (9, 1868419), (17, 989163), (21, 800751), (49, 343179), (51, 329721), (63, 266917), (119, 141309), (147, 114393), (153, 109907), (357, 47103), (441, 38131), (833, 20187), (1071, 15701), (2243, 7497), (2499, 6729)]