18771088

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8821}}^1$

素因数の和:8855

約数の個数: 40

約数和(自身を含む): 43757120

約数和(自身を除く): 24986032

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 8821, 17642, 35284, 61747, 70568, 123494, 141136, 167599, 246988, 335198, 493976, 670396, 987952, 1173193, 1340792, 2346386, 2681584, 4692772, 9385544, 18771088]

約数ペア:

[(1, 18771088), (2, 9385544), (4, 4692772), (7, 2681584), (8, 2346386), (14, 1340792), (16, 1173193), (19, 987952), (28, 670396), (38, 493976), (56, 335198), (76, 246988), (112, 167599), (133, 141136), (152, 123494), (266, 70568), (304, 61747), (532, 35284), (1064, 17642), (2128, 8821)]