2221219

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 3045168

約数和(自身を除く): 823949

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 317, 539, 637, 1001, 2219, 3487, 4121, 7007, 15533, 24409, 28847, 45331, 170863, 201929, 317317, 2221219]

約数ペア:

[(1, 2221219), (7, 317317), (11, 201929), (13, 170863), (49, 45331), (77, 28847), (91, 24409), (143, 15533), (317, 7007), (539, 4121), (637, 3487), (1001, 2219)]