21798981

素因数分解:

$3^2\times {\mathrm{17}}^4\times {\mathrm{29}}^1$

素因数の和:103

約数の個数: 30

約数和(自身を含む): 34608990

約数和(自身を除く): 12810009

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 289, 493, 867, 1479, 2601, 4437, 4913, 8381, 14739, 25143, 44217, 75429, 83521, 142477, 250563, 427431, 751689, 1282293, 2422109, 7266327, 21798981]

約数ペア:

[(1, 21798981), (3, 7266327), (9, 2422109), (17, 1282293), (29, 751689), (51, 427431), (87, 250563), (153, 142477), (261, 83521), (289, 75429), (493, 44217), (867, 25143), (1479, 14739), (2601, 8381), (4437, 4913)]