21759543

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1319}}^1$

素因数の和:1388

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 13722057

約数列:

[1, 3, 9, 13, 27, 39, 47, 117, 141, 351, 423, 611, 1269, 1319, 1833, 3957, 5499, 11871, 16497, 17147, 35613, 51441, 61993, 154323, 185979, 462969, 557937, 805909, 1673811, 2417727, 7253181, 21759543]

約数ペア:

[(1, 21759543), (3, 7253181), (9, 2417727), (13, 1673811), (27, 805909), (39, 557937), (47, 462969), (117, 185979), (141, 154323), (351, 61993), (423, 51441), (611, 35613), (1269, 17147), (1319, 16497), (1833, 11871), (3957, 5499)]