21713556

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{653}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 54057024

約数和(自身を除く): 32343468

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 163, 204, 326, 489, 652, 653, 978, 1306, 1956, 1959, 2612, 2771, 3918, 5542, 7836, 8313, 11084, 11101, 16626, 22202, 33252, 33303, 44404, 66606, 106439, 133212, 212878, 319317, 425756, 638634, 1277268, 1809463, 3618926, 5428389, 7237852, 10856778, 21713556]

約数ペア:

[(1, 21713556), (2, 10856778), (3, 7237852), (4, 5428389), (6, 3618926), (12, 1809463), (17, 1277268), (34, 638634), (51, 425756), (68, 319317), (102, 212878), (163, 133212), (204, 106439), (326, 66606), (489, 44404), (652, 33303), (653, 33252), (978, 22202), (1306, 16626), (1956, 11101), (1959, 11084), (2612, 8313), (2771, 7836), (3918, 5542)]