20804085117

素因数分解:

$3^5\times {\mathrm{1979}}^1\times {\mathrm{43261}}^1$

素因数の和:45255

約数の個数: 24

約数和(自身を含む): 31179788640

約数和(自身を除く): 10375703523

約数列:

[1, 3, 9, 27, 81, 243, 1979, 5937, 17811, 43261, 53433, 129783, 160299, 389349, 480897, 1168047, 3504141, 10512423, 85613519, 256840557, 770521671, 2311565013, 6934695039, 20804085117]

約数ペア:

[(1, 20804085117), (3, 6934695039), (9, 2311565013), (27, 770521671), (81, 256840557), (243, 85613519), (1979, 10512423), (5937, 3504141), (17811, 1168047), (43261, 480897), (53433, 389349), (129783, 160299)]