16421377

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 21012480

約数和(自身を除く): 4591103

約数列:

[1, 7, 19, 37, 47, 71, 133, 259, 329, 497, 703, 893, 1349, 1739, 2627, 3337, 4921, 6251, 9443, 12173, 18389, 23359, 33041, 49913, 63403, 123469, 231287, 349391, 443821, 864283, 2345911, 16421377]

約数ペア:

[(1, 16421377), (7, 2345911), (19, 864283), (37, 443821), (47, 349391), (71, 231287), (133, 123469), (259, 63403), (329, 49913), (497, 33041), (703, 23359), (893, 18389), (1349, 12173), (1739, 9443), (2627, 6251), (3337, 4921)]