81719209

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1583}}^1$

素因数の和:1645

約数の個数: 24

約数和(自身を含む): 101388672

約数和(自身を除く): 19669463

約数列:

[1, 11, 13, 19, 143, 209, 247, 361, 1583, 2717, 3971, 4693, 17413, 20579, 30077, 51623, 226369, 330847, 391001, 571463, 4301011, 6286093, 7429019, 81719209]

約数ペア:

[(1, 81719209), (11, 7429019), (13, 6286093), (19, 4301011), (143, 571463), (209, 391001), (247, 330847), (361, 226369), (1583, 51623), (2717, 30077), (3971, 20579), (4693, 17413)]