19901888

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{10723}}^1$

素因数の和:10764

約数の個数: 28

約数和(自身を含む): 40858440

約数和(自身を除く): 20956552

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 232, 464, 928, 1856, 10723, 21446, 42892, 85784, 171568, 310967, 343136, 621934, 686272, 1243868, 2487736, 4975472, 9950944, 19901888]

約数ペア:

[(1, 19901888), (2, 9950944), (4, 4975472), (8, 2487736), (16, 1243868), (29, 686272), (32, 621934), (58, 343136), (64, 310967), (116, 171568), (232, 85784), (464, 42892), (928, 21446), (1856, 10723)]