19209956

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 17561884

約数列:

[1, 2, 4, 31, 37, 53, 62, 74, 79, 106, 124, 148, 158, 212, 316, 1147, 1643, 1961, 2294, 2449, 2923, 3286, 3922, 4187, 4588, 4898, 5846, 6572, 7844, 8374, 9796, 11692, 16748, 60791, 90613, 121582, 129797, 154919, 181226, 243164, 259594, 309838, 362452, 519188, 619676, 4802489, 9604978, 19209956]

約数ペア:

[(1, 19209956), (2, 9604978), (4, 4802489), (31, 619676), (37, 519188), (53, 362452), (62, 309838), (74, 259594), (79, 243164), (106, 181226), (124, 154919), (148, 129797), (158, 121582), (212, 90613), (316, 60791), (1147, 16748), (1643, 11692), (1961, 9796), (2294, 8374), (2449, 7844), (2923, 6572), (3286, 5846), (3922, 4898), (4187, 4588)]