20705704

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2617}}^1$

素因数の和:2689

約数の個数: 32

約数和(自身を含む): 41469120

約数和(自身を除く): 20763416

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 172, 184, 344, 989, 1978, 2617, 3956, 5234, 7912, 10468, 20936, 60191, 112531, 120382, 225062, 240764, 450124, 481528, 900248, 2588213, 5176426, 10352852, 20705704]

約数ペア:

[(1, 20705704), (2, 10352852), (4, 5176426), (8, 2588213), (23, 900248), (43, 481528), (46, 450124), (86, 240764), (92, 225062), (172, 120382), (184, 112531), (344, 60191), (989, 20936), (1978, 10468), (2617, 7912), (3956, 5234)]