2161648

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{809}}^1$

素因数の和:984

約数の個数: 20

約数和(自身を含む): 4218480

約数和(自身を除く): 2056832

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 809, 1336, 1618, 2672, 3236, 6472, 12944, 135103, 270206, 540412, 1080824, 2161648]

約数ペア:

[(1, 2161648), (2, 1080824), (4, 540412), (8, 270206), (16, 135103), (167, 12944), (334, 6472), (668, 3236), (809, 2672), (1336, 1618)]