18731691

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{439}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 29652480

約数和(自身を除く): 10920789

約数列:

[1, 3, 9, 11, 33, 99, 431, 439, 1293, 1317, 3879, 3951, 4741, 4829, 14223, 14487, 42669, 43461, 189209, 567627, 1702881, 2081299, 6243897, 18731691]

約数ペア:

[(1, 18731691), (3, 6243897), (9, 2081299), (11, 1702881), (33, 567627), (99, 189209), (431, 43461), (439, 42669), (1293, 14487), (1317, 14223), (3879, 4829), (3951, 4741)]