20999313

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3319}}^1$

素因数の和:3381

約数の個数: 24

約数和(自身を含む): 32801600

約数和(自身を除く): 11802287

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 3319, 6327, 9957, 29871, 63061, 122803, 189183, 368409, 567549, 1105227, 2333257, 6999771, 20999313]

約数ペア:

[(1, 20999313), (3, 6999771), (9, 2333257), (19, 1105227), (37, 567549), (57, 368409), (111, 189183), (171, 122803), (333, 63061), (703, 29871), (2109, 9957), (3319, 6327)]