20918928

素因数分解:

$2^4\times 3^1\times {\mathrm{107}}^1\times {\mathrm{4073}}^1$

素因数の和:4191

約数の個数: 40

約数和(自身を含む): 54559008

約数和(自身を除く): 33640080

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 107, 214, 321, 428, 642, 856, 1284, 1712, 2568, 4073, 5136, 8146, 12219, 16292, 24438, 32584, 48876, 65168, 97752, 195504, 435811, 871622, 1307433, 1743244, 2614866, 3486488, 5229732, 6972976, 10459464, 20918928]

約数ペア:

[(1, 20918928), (2, 10459464), (3, 6972976), (4, 5229732), (6, 3486488), (8, 2614866), (12, 1743244), (16, 1307433), (24, 871622), (48, 435811), (107, 195504), (214, 97752), (321, 65168), (428, 48876), (642, 32584), (856, 24438), (1284, 16292), (1712, 12219), (2568, 8146), (4073, 5136)]