18664542

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 72

約数和(自身を含む): 45542952

約数和(自身を除く): 26878410

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 83, 93, 117, 166, 186, 234, 249, 279, 403, 498, 558, 747, 806, 961, 1079, 1209, 1494, 1922, 2158, 2418, 2573, 2883, 3237, 3627, 5146, 5766, 6474, 7254, 7719, 8649, 9711, 12493, 15438, 17298, 19422, 23157, 24986, 33449, 37479, 46314, 66898, 74958, 79763, 100347, 112437, 159526, 200694, 224874, 239289, 301041, 478578, 602082, 717867, 1036919, 1435734, 2073838, 3110757, 6221514, 9332271, 18664542]

約数ペア:

[(1, 18664542), (2, 9332271), (3, 6221514), (6, 3110757), (9, 2073838), (13, 1435734), (18, 1036919), (26, 717867), (31, 602082), (39, 478578), (62, 301041), (78, 239289), (83, 224874), (93, 200694), (117, 159526), (166, 112437), (186, 100347), (234, 79763), (249, 74958), (279, 66898), (403, 46314), (498, 37479), (558, 33449), (747, 24986), (806, 23157), (961, 19422), (1079, 17298), (1209, 15438), (1494, 12493), (1922, 9711), (2158, 8649), (2418, 7719), (2573, 7254), (2883, 6474), (3237, 5766), (3627, 5146)]