28130955

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1217}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 47706624

約数和(自身を除く): 19575669

約数列:

[1, 3, 5, 15, 23, 67, 69, 115, 201, 335, 345, 1005, 1217, 1541, 3651, 4623, 6085, 7705, 18255, 23115, 27991, 81539, 83973, 139955, 244617, 407695, 419865, 1223085, 1875397, 5626191, 9376985, 28130955]

約数ペア:

[(1, 28130955), (3, 9376985), (5, 5626191), (15, 1875397), (23, 1223085), (67, 419865), (69, 407695), (115, 244617), (201, 139955), (335, 83973), (345, 81539), (1005, 27991), (1217, 23115), (1541, 18255), (3651, 7705), (4623, 6085)]