21524205

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{701}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 14867475

約数列:

[1, 3, 5, 15, 23, 69, 89, 115, 267, 345, 445, 701, 1335, 2047, 2103, 3505, 6141, 10235, 10515, 16123, 30705, 48369, 62389, 80615, 187167, 241845, 311945, 935835, 1434947, 4304841, 7174735, 21524205]

約数ペア:

[(1, 21524205), (3, 7174735), (5, 4304841), (15, 1434947), (23, 935835), (69, 311945), (89, 241845), (115, 187167), (267, 80615), (345, 62389), (445, 48369), (701, 30705), (1335, 16123), (2047, 10515), (2103, 10235), (3505, 6141)]