28420077

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{7477}}^1$

素因数の和:7668

約数の個数: 16

約数和(自身を含む): 43551872

約数和(自身を除く): 15131795

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 7477, 22431, 52339, 157017, 1353337, 4060011, 9473359, 28420077]

約数ペア:

[(1, 28420077), (3, 9473359), (7, 4060011), (21, 1353337), (181, 157017), (543, 52339), (1267, 22431), (3801, 7477)]