20269821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1277}}^1$

素因数の和:1341

約数の個数: 32

約数和(自身を含む): 32635008

約数和(自身を除く): 12365187

約数列:

[1, 3, 11, 13, 33, 37, 39, 111, 143, 407, 429, 481, 1221, 1277, 1443, 3831, 5291, 14047, 15873, 16601, 42141, 47249, 49803, 141747, 182611, 519739, 547833, 614237, 1559217, 1842711, 6756607, 20269821]

約数ペア:

[(1, 20269821), (3, 6756607), (11, 1842711), (13, 1559217), (33, 614237), (37, 547833), (39, 519739), (111, 182611), (143, 141747), (407, 49803), (429, 47249), (481, 42141), (1221, 16601), (1277, 15873), (1443, 14047), (3831, 5291)]