21807254

素因数分解:

$2^1\times 7^3\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 16899946

約数列:

[1, 2, 7, 14, 49, 83, 98, 166, 343, 383, 581, 686, 766, 1162, 2681, 4067, 5362, 8134, 18767, 28469, 31789, 37534, 56938, 63578, 131369, 222523, 262738, 445046, 1557661, 3115322, 10903627, 21807254]

約数ペア:

[(1, 21807254), (2, 10903627), (7, 3115322), (14, 1557661), (49, 445046), (83, 262738), (98, 222523), (166, 131369), (343, 63578), (383, 56938), (581, 37534), (686, 31789), (766, 28469), (1162, 18767), (2681, 8134), (4067, 5362)]