18701826

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 26004990

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 71, 78, 142, 143, 213, 286, 307, 426, 429, 614, 781, 858, 921, 923, 1562, 1842, 1846, 2343, 2769, 3377, 3991, 4686, 5538, 6754, 7982, 10131, 10153, 11973, 20262, 20306, 21797, 23946, 30459, 43594, 43901, 60918, 65391, 87802, 130782, 131703, 239767, 263406, 283361, 479534, 566722, 719301, 850083, 1438602, 1700166, 3116971, 6233942, 9350913, 18701826]

約数ペア:

[(1, 18701826), (2, 9350913), (3, 6233942), (6, 3116971), (11, 1700166), (13, 1438602), (22, 850083), (26, 719301), (33, 566722), (39, 479534), (66, 283361), (71, 263406), (78, 239767), (142, 131703), (143, 130782), (213, 87802), (286, 65391), (307, 60918), (426, 43901), (429, 43594), (614, 30459), (781, 23946), (858, 21797), (921, 20306), (923, 20262), (1562, 11973), (1842, 10153), (1846, 10131), (2343, 7982), (2769, 6754), (3377, 5538), (3991, 4686)]