18969236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2551}}^1$

素因数の和:2592

約数の個数: 36

約数和(自身を含む): 39229344

約数和(自身を除く): 20260108

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1859, 2551, 3718, 5102, 7436, 10204, 28061, 33163, 56122, 66326, 112244, 132652, 364793, 431119, 729586, 862238, 1459172, 1724476, 4742309, 9484618, 18969236]

約数ペア:

[(1, 18969236), (2, 9484618), (4, 4742309), (11, 1724476), (13, 1459172), (22, 862238), (26, 729586), (44, 431119), (52, 364793), (143, 132652), (169, 112244), (286, 66326), (338, 56122), (572, 33163), (676, 28061), (1859, 10204), (2551, 7436), (3718, 5102)]