20033391

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 14987409

約数列:

[1, 3, 7, 19, 21, 23, 37, 57, 59, 69, 111, 133, 161, 177, 259, 399, 413, 437, 483, 703, 777, 851, 1121, 1239, 1311, 1357, 2109, 2183, 2553, 3059, 3363, 4071, 4921, 5957, 6549, 7847, 9177, 9499, 14763, 15281, 16169, 17871, 23541, 25783, 28497, 41477, 45843, 48507, 50209, 77349, 113183, 124431, 150627, 180481, 290339, 339549, 351463, 541443, 871017, 953971, 1054389, 2861913, 6677797, 20033391]

約数ペア:

[(1, 20033391), (3, 6677797), (7, 2861913), (19, 1054389), (21, 953971), (23, 871017), (37, 541443), (57, 351463), (59, 339549), (69, 290339), (111, 180481), (133, 150627), (161, 124431), (177, 113183), (259, 77349), (399, 50209), (413, 48507), (437, 45843), (483, 41477), (703, 28497), (777, 25783), (851, 23541), (1121, 17871), (1239, 16169), (1311, 15281), (1357, 14763), (2109, 9499), (2183, 9177), (2553, 7847), (3059, 6549), (3363, 5957), (4071, 4921)]