219669891

素因数分解:

$3^1\times 7^4\times {\mathrm{30497}}^1$

素因数の和:30528

約数の個数: 20

約数和(自身を含む): 341699592

約数和(自身を除く): 122029701

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 30497, 91491, 213479, 640437, 1494353, 4483059, 10460471, 31381413, 73223297, 219669891]

約数ペア:

[(1, 219669891), (3, 73223297), (7, 31381413), (21, 10460471), (49, 4483059), (147, 1494353), (343, 640437), (1029, 213479), (2401, 91491), (7203, 30497)]