28980237

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1571}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 46480896

約数和(自身を除く): 17500659

約数列:

[1, 3, 11, 13, 33, 39, 43, 129, 143, 429, 473, 559, 1419, 1571, 1677, 4713, 6149, 17281, 18447, 20423, 51843, 61269, 67553, 202659, 224653, 673959, 743083, 878189, 2229249, 2634567, 9660079, 28980237]

約数ペア:

[(1, 28980237), (3, 9660079), (11, 2634567), (13, 2229249), (33, 878189), (39, 743083), (43, 673959), (129, 224653), (143, 202659), (429, 67553), (473, 61269), (559, 51843), (1419, 20423), (1571, 18447), (1677, 17281), (4713, 6149)]