21430449

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1747}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 32722560

約数和(自身を除く): 11292111

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 1747, 4089, 5241, 12267, 15723, 50663, 82109, 151989, 246327, 455967, 738981, 2381161, 7143483, 21430449]

約数ペア:

[(1, 21430449), (3, 7143483), (9, 2381161), (29, 738981), (47, 455967), (87, 246327), (141, 151989), (261, 82109), (423, 50663), (1363, 15723), (1747, 12267), (4089, 5241)]