81910185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1217}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 150135552

約数和(自身を除く): 68225367

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 641, 1217, 1923, 3205, 3651, 4487, 6085, 8519, 9615, 13461, 18255, 22435, 25557, 42595, 67305, 127785, 780097, 2340291, 3900485, 5460679, 11701455, 16382037, 27303395, 81910185]

約数ペア:

[(1, 81910185), (3, 27303395), (5, 16382037), (7, 11701455), (15, 5460679), (21, 3900485), (35, 2340291), (105, 780097), (641, 127785), (1217, 67305), (1923, 42595), (3205, 25557), (3651, 22435), (4487, 18255), (6085, 13461), (8519, 9615)]