19810714

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 37293696

約数和(自身を除く): 17482982

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 197, 394, 653, 1306, 1379, 2167, 2758, 4334, 4571, 7183, 9142, 14366, 15169, 30338, 50281, 100562, 128641, 257282, 900487, 1415051, 1800974, 2830102, 9905357, 19810714]

約数ペア:

[(1, 19810714), (2, 9905357), (7, 2830102), (11, 1800974), (14, 1415051), (22, 900487), (77, 257282), (154, 128641), (197, 100562), (394, 50281), (653, 30338), (1306, 15169), (1379, 14366), (2167, 9142), (2758, 7183), (4334, 4571)]