17966818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 30176640

約数和(自身を除く): 12209822

約数列:

[1, 2, 19, 23, 38, 46, 61, 122, 337, 437, 674, 874, 1159, 1403, 2318, 2806, 6403, 7751, 12806, 15502, 20557, 26657, 41114, 53314, 147269, 294538, 390583, 472811, 781166, 945622, 8983409, 17966818]

約数ペア:

[(1, 17966818), (2, 8983409), (19, 945622), (23, 781166), (38, 472811), (46, 390583), (61, 294538), (122, 147269), (337, 53314), (437, 41114), (674, 26657), (874, 20557), (1159, 15502), (1403, 12806), (2318, 7751), (2806, 6403)]