1978713

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:130

約数の個数: 36

約数和(自身を含む): 3319680

約数和(自身を除く): 1340967

約数列:

[1, 3, 9, 11, 23, 33, 69, 79, 99, 121, 207, 237, 253, 363, 711, 759, 869, 1089, 1817, 2277, 2607, 2783, 5451, 7821, 8349, 9559, 16353, 19987, 25047, 28677, 59961, 86031, 179883, 219857, 659571, 1978713]

約数ペア:

[(1, 1978713), (3, 659571), (9, 219857), (11, 179883), (23, 86031), (33, 59961), (69, 28677), (79, 25047), (99, 19987), (121, 16353), (207, 9559), (237, 8349), (253, 7821), (363, 5451), (711, 2783), (759, 2607), (869, 2277), (1089, 1817)]