18869936

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1091}}^1$

素因数の和:1169

約数の個数: 40

約数和(自身を含む): 38997504

約数和(自身を除く): 20127568

約数列:

[1, 2, 4, 8, 16, 23, 46, 47, 92, 94, 184, 188, 368, 376, 752, 1081, 1091, 2162, 2182, 4324, 4364, 8648, 8728, 17296, 17456, 25093, 50186, 51277, 100372, 102554, 200744, 205108, 401488, 410216, 820432, 1179371, 2358742, 4717484, 9434968, 18869936]

約数ペア:

[(1, 18869936), (2, 9434968), (4, 4717484), (8, 2358742), (16, 1179371), (23, 820432), (46, 410216), (47, 401488), (92, 205108), (94, 200744), (184, 102554), (188, 100372), (368, 51277), (376, 50186), (752, 25093), (1081, 17456), (1091, 17296), (2162, 8728), (2182, 8648), (4324, 4364)]