19615808

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{9887}}^1$

素因数の和:9930

約数の個数: 28

約数和(自身を含む): 40184832

約数和(自身を除く): 20569024

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 992, 1984, 9887, 19774, 39548, 79096, 158192, 306497, 316384, 612994, 632768, 1225988, 2451976, 4903952, 9807904, 19615808]

約数ペア:

[(1, 19615808), (2, 9807904), (4, 4903952), (8, 2451976), (16, 1225988), (31, 632768), (32, 612994), (62, 316384), (64, 306497), (124, 158192), (248, 79096), (496, 39548), (992, 19774), (1984, 9887)]