20656779

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{269}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 12002421

約数列:

[1, 3, 11, 13, 33, 39, 143, 179, 269, 429, 537, 807, 1969, 2327, 2959, 3497, 5907, 6981, 8877, 10491, 25597, 38467, 48151, 76791, 115401, 144453, 529661, 625963, 1588983, 1877889, 6885593, 20656779]

約数ペア:

[(1, 20656779), (3, 6885593), (11, 1877889), (13, 1588983), (33, 625963), (39, 529661), (143, 144453), (179, 115401), (269, 76791), (429, 48151), (537, 38467), (807, 25597), (1969, 10491), (2327, 8877), (2959, 6981), (3497, 5907)]