18591824

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:555

約数の個数: 40

約数和(自身を含む): 37548192

約数和(自身を除く): 18956368

約数列:

[1, 2, 4, 8, 16, 43, 61, 86, 122, 172, 244, 344, 443, 488, 688, 886, 976, 1772, 2623, 3544, 5246, 7088, 10492, 19049, 20984, 27023, 38098, 41968, 54046, 76196, 108092, 152392, 216184, 304784, 432368, 1161989, 2323978, 4647956, 9295912, 18591824]

約数ペア:

[(1, 18591824), (2, 9295912), (4, 4647956), (8, 2323978), (16, 1161989), (43, 432368), (61, 304784), (86, 216184), (122, 152392), (172, 108092), (244, 76196), (344, 54046), (443, 41968), (488, 38098), (688, 27023), (886, 20984), (976, 19049), (1772, 10492), (2623, 7088), (3544, 5246)]