18742738

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1291}}^1$

素因数の和:1378

約数の個数: 32

約数和(自身を含む): 34604928

約数和(自身を除く): 15862190

約数列:

[1, 2, 7, 14, 17, 34, 61, 119, 122, 238, 427, 854, 1037, 1291, 2074, 2582, 7259, 9037, 14518, 18074, 21947, 43894, 78751, 153629, 157502, 307258, 551257, 1102514, 1338767, 2677534, 9371369, 18742738]

約数ペア:

[(1, 18742738), (2, 9371369), (7, 2677534), (14, 1338767), (17, 1102514), (34, 551257), (61, 307258), (119, 157502), (122, 153629), (238, 78751), (427, 43894), (854, 21947), (1037, 18074), (1291, 14518), (2074, 9037), (2582, 7259)]