19853253

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3989}}^1$

素因数の和:4081

約数の個数: 24

約数和(自身を含む): 33196800

約数和(自身を除く): 13343547

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 711, 1659, 3989, 4977, 11967, 27923, 35901, 83769, 251307, 315131, 945393, 2205917, 2836179, 6617751, 19853253]

約数ペア:

[(1, 19853253), (3, 6617751), (7, 2836179), (9, 2205917), (21, 945393), (63, 315131), (79, 251307), (237, 83769), (553, 35901), (711, 27923), (1659, 11967), (3989, 4977)]