221767238

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{205721}}^1$

素因数の和:205748

約数の個数: 24

約数和(自身を含む): 422141544

約数和(自身を除く): 200374306

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 205721, 411442, 1440047, 2262931, 2880094, 4525862, 10080329, 15840517, 20160658, 31681034, 110883619, 221767238]

約数ペア:

[(1, 221767238), (2, 110883619), (7, 31681034), (11, 20160658), (14, 15840517), (22, 10080329), (49, 4525862), (77, 2880094), (98, 2262931), (154, 1440047), (539, 411442), (1078, 205721)]