20731657257

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{52361}}^1$

素因数の和:52474

約数の個数: 48

約数和(自身を含む): 32592203280

約数和(自身を除く): 11860546023

約数列:

[1, 3, 9, 29, 37, 41, 87, 111, 123, 261, 333, 369, 1073, 1189, 1517, 3219, 3567, 4551, 9657, 10701, 13653, 43993, 52361, 131979, 157083, 395937, 471249, 1518469, 1937357, 2146801, 4555407, 5812071, 6440403, 13666221, 17436213, 19321209, 56183353, 62257229, 79431637, 168550059, 186771687, 238294911, 505650177, 560315061, 714884733, 2303517473, 6910552419, 20731657257]

約数ペア:

[(1, 20731657257), (3, 6910552419), (9, 2303517473), (29, 714884733), (37, 560315061), (41, 505650177), (87, 238294911), (111, 186771687), (123, 168550059), (261, 79431637), (333, 62257229), (369, 56183353), (1073, 19321209), (1189, 17436213), (1517, 13666221), (3219, 6440403), (3567, 5812071), (4551, 4555407), (9657, 2146801), (10701, 1937357), (13653, 1518469), (43993, 471249), (52361, 395937), (131979, 157083)]