20884539

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 31639104

約数和(自身を除く): 10754565

約数列:

[1, 3, 13, 37, 39, 41, 111, 123, 353, 481, 533, 1059, 1443, 1517, 1599, 4551, 4589, 13061, 13767, 14473, 19721, 39183, 43419, 59163, 169793, 188149, 509379, 535501, 564447, 1606503, 6961513, 20884539]

約数ペア:

[(1, 20884539), (3, 6961513), (13, 1606503), (37, 564447), (39, 535501), (41, 509379), (111, 188149), (123, 169793), (353, 59163), (481, 43419), (533, 39183), (1059, 19721), (1443, 14473), (1517, 13767), (1599, 13061), (4551, 4589)]