31696161

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 52815744

約数和(自身を除く): 21119583

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 113, 133, 259, 339, 361, 399, 703, 777, 791, 1083, 2109, 2147, 2373, 2527, 4181, 4921, 6441, 7581, 12543, 13357, 14763, 15029, 29267, 40071, 40793, 45087, 79439, 87801, 93499, 122379, 238317, 280497, 285551, 556073, 856653, 1509341, 1668219, 4528023, 10565387, 31696161]

約数ペア:

[(1, 31696161), (3, 10565387), (7, 4528023), (19, 1668219), (21, 1509341), (37, 856653), (57, 556073), (111, 285551), (113, 280497), (133, 238317), (259, 122379), (339, 93499), (361, 87801), (399, 79439), (703, 45087), (777, 40793), (791, 40071), (1083, 29267), (2109, 15029), (2147, 14763), (2373, 13357), (2527, 12543), (4181, 7581), (4921, 6441)]