20349186

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:707

約数の個数: 64

約数和(自身を含む): 49182336

約数和(自身を除く): 28833150

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 37, 39, 66, 74, 78, 111, 143, 222, 286, 407, 429, 481, 641, 814, 858, 962, 1221, 1282, 1443, 1923, 2442, 2886, 3846, 5291, 7051, 8333, 10582, 14102, 15873, 16666, 21153, 23717, 24999, 31746, 42306, 47434, 49998, 71151, 91663, 142302, 183326, 260887, 274989, 308321, 521774, 549978, 616642, 782661, 924963, 1565322, 1849926, 3391531, 6783062, 10174593, 20349186]

約数ペア:

[(1, 20349186), (2, 10174593), (3, 6783062), (6, 3391531), (11, 1849926), (13, 1565322), (22, 924963), (26, 782661), (33, 616642), (37, 549978), (39, 521774), (66, 308321), (74, 274989), (78, 260887), (111, 183326), (143, 142302), (222, 91663), (286, 71151), (407, 49998), (429, 47434), (481, 42306), (641, 31746), (814, 24999), (858, 23717), (962, 21153), (1221, 16666), (1282, 15873), (1443, 14102), (1923, 10582), (2442, 8333), (2886, 7051), (3846, 5291)]