28403895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{145661}}^1$

素因数の和:145682

約数の個数: 16

約数和(自身を含む): 48942432

約数和(自身を除く): 20538537

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 145661, 436983, 728305, 1893593, 2184915, 5680779, 9467965, 28403895]

約数ペア:

[(1, 28403895), (3, 9467965), (5, 5680779), (13, 2184915), (15, 1893593), (39, 728305), (65, 436983), (195, 145661)]