28219149

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1049}}^1$

素因数の和:1130

約数の個数: 36

約数和(自身を含む): 48239100

約数和(自身を除く): 20019951

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1049, 1281, 2989, 3147, 3843, 7343, 8967, 9441, 22029, 26901, 51401, 63989, 66087, 154203, 191967, 447923, 462609, 575901, 1343769, 3135461, 4031307, 9406383, 28219149]

約数ペア:

[(1, 28219149), (3, 9406383), (7, 4031307), (9, 3135461), (21, 1343769), (49, 575901), (61, 462609), (63, 447923), (147, 191967), (183, 154203), (427, 66087), (441, 63989), (549, 51401), (1049, 26901), (1281, 22029), (2989, 9441), (3147, 8967), (3843, 7343)]