19867883

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 36

約数和(自身を含む): 26038512

約数和(自身を除く): 6170629

約数列:

[1, 7, 17, 23, 49, 61, 119, 161, 289, 391, 427, 833, 1037, 1127, 1403, 2023, 2737, 2989, 6647, 7259, 9821, 14161, 17629, 19159, 23851, 46529, 50813, 68747, 123403, 166957, 325703, 405467, 863821, 1168699, 2838269, 19867883]

約数ペア:

[(1, 19867883), (7, 2838269), (17, 1168699), (23, 863821), (49, 405467), (61, 325703), (119, 166957), (161, 123403), (289, 68747), (391, 50813), (427, 46529), (833, 23851), (1037, 19159), (1127, 17629), (1403, 14161), (2023, 9821), (2737, 7259), (2989, 6647)]