81331971

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{367}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 127039488

約数和(自身を除く): 45707517

約数列:

[1, 3, 7, 21, 61, 173, 183, 367, 427, 519, 1101, 1211, 1281, 2569, 3633, 7707, 10553, 22387, 31659, 63491, 67161, 73871, 156709, 190473, 221613, 444437, 470127, 1333311, 3872951, 11618853, 27110657, 81331971]

約数ペア:

[(1, 81331971), (3, 27110657), (7, 11618853), (21, 3872951), (61, 1333311), (173, 470127), (183, 444437), (367, 221613), (427, 190473), (519, 156709), (1101, 73871), (1211, 67161), (1281, 63491), (2569, 31659), (3633, 22387), (7707, 10553)]