20866845

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{347}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 35412480

約数和(自身を除く): 14545635

約数列:

[1, 3, 5, 15, 19, 57, 95, 211, 285, 347, 633, 1041, 1055, 1735, 3165, 4009, 5205, 6593, 12027, 19779, 20045, 32965, 60135, 73217, 98895, 219651, 366085, 1098255, 1391123, 4173369, 6955615, 20866845]

約数ペア:

[(1, 20866845), (3, 6955615), (5, 4173369), (15, 1391123), (19, 1098255), (57, 366085), (95, 219651), (211, 98895), (285, 73217), (347, 60135), (633, 32965), (1041, 20045), (1055, 19779), (1735, 12027), (3165, 6593), (4009, 5205)]