16920195

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{401}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 28365120

約数和(自身を除く): 11444925

約数列:

[1, 3, 5, 15, 29, 87, 97, 145, 291, 401, 435, 485, 1203, 1455, 2005, 2813, 6015, 8439, 11629, 14065, 34887, 38897, 42195, 58145, 116691, 174435, 194485, 583455, 1128013, 3384039, 5640065, 16920195]

約数ペア:

[(1, 16920195), (3, 5640065), (5, 3384039), (15, 1128013), (29, 583455), (87, 194485), (97, 174435), (145, 116691), (291, 58145), (401, 42195), (435, 38897), (485, 34887), (1203, 14065), (1455, 11629), (2005, 8439), (2813, 6015)]