20011838

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{653}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 37670400

約数和(自身を除く): 17658562

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 199, 398, 653, 1306, 1393, 2189, 2786, 4378, 4571, 7183, 9142, 14366, 15323, 30646, 50281, 100562, 129947, 259894, 909629, 1429417, 1819258, 2858834, 10005919, 20011838]

約数ペア:

[(1, 20011838), (2, 10005919), (7, 2858834), (11, 1819258), (14, 1429417), (22, 909629), (77, 259894), (154, 129947), (199, 100562), (398, 50281), (653, 30646), (1306, 15323), (1393, 14366), (2189, 9142), (2786, 7183), (4378, 4571)]