18811836

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 50625120

約数和(自身を除く): 31813284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 37, 58, 74, 87, 111, 116, 148, 174, 222, 261, 333, 348, 444, 487, 522, 666, 974, 1044, 1073, 1332, 1461, 1948, 2146, 2922, 3219, 4292, 4383, 5844, 6438, 8766, 9657, 12876, 14123, 17532, 18019, 19314, 28246, 36038, 38628, 42369, 54057, 56492, 72076, 84738, 108114, 127107, 162171, 169476, 216228, 254214, 324342, 508428, 522551, 648684, 1045102, 1567653, 2090204, 3135306, 4702959, 6270612, 9405918, 18811836]

約数ペア:

[(1, 18811836), (2, 9405918), (3, 6270612), (4, 4702959), (6, 3135306), (9, 2090204), (12, 1567653), (18, 1045102), (29, 648684), (36, 522551), (37, 508428), (58, 324342), (74, 254214), (87, 216228), (111, 169476), (116, 162171), (148, 127107), (174, 108114), (222, 84738), (261, 72076), (333, 56492), (348, 54057), (444, 42369), (487, 38628), (522, 36038), (666, 28246), (974, 19314), (1044, 18019), (1073, 17532), (1332, 14123), (1461, 12876), (1948, 9657), (2146, 8766), (2922, 6438), (3219, 5844), (4292, 4383)]