21810613

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 4044587

約数列:

[1, 11, 19, 53, 121, 179, 209, 583, 1007, 1969, 2299, 3401, 6413, 9487, 11077, 21659, 37411, 104357, 121847, 180253, 411521, 1147927, 1982783, 21810613]

約数ペア:

[(1, 21810613), (11, 1982783), (19, 1147927), (53, 411521), (121, 180253), (179, 121847), (209, 104357), (583, 37411), (1007, 21659), (1969, 11077), (2299, 9487), (3401, 6413)]