17881138

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2058

約数の個数: 24

約数和(自身を含む): 30293676

約数和(自身を除く): 12412538

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 1997, 3994, 4477, 8954, 21967, 43934, 73889, 147778, 241637, 483274, 812779, 1625558, 8940569, 17881138]

約数ペア:

[(1, 17881138), (2, 8940569), (11, 1625558), (22, 812779), (37, 483274), (74, 241637), (121, 147778), (242, 73889), (407, 43934), (814, 21967), (1997, 8954), (3994, 4477)]