20415417

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 10550343

約数列:

[1, 3, 11, 33, 41, 79, 123, 191, 237, 451, 573, 869, 1353, 2101, 2607, 3239, 6303, 7831, 9717, 15089, 23493, 35629, 45267, 86141, 106887, 165979, 258423, 497937, 618649, 1855947, 6805139, 20415417]

約数ペア:

[(1, 20415417), (3, 6805139), (11, 1855947), (33, 618649), (41, 497937), (79, 258423), (123, 165979), (191, 106887), (237, 86141), (451, 45267), (573, 35629), (869, 23493), (1353, 15089), (2101, 9717), (2607, 7831), (3239, 6303)]