19857045

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1389

約数の個数: 32

約数和(自身を含む): 34675200

約数和(自身を除く): 14818155

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 1289, 3081, 3867, 5135, 6445, 15405, 16757, 19335, 50271, 83785, 101831, 251355, 305493, 509155, 1323803, 1527465, 3971409, 6619015, 19857045]

約数ペア:

[(1, 19857045), (3, 6619015), (5, 3971409), (13, 1527465), (15, 1323803), (39, 509155), (65, 305493), (79, 251355), (195, 101831), (237, 83785), (395, 50271), (1027, 19335), (1185, 16757), (1289, 15405), (3081, 6445), (3867, 5135)]