19629272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1091}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 39901680

約数和(自身を除く): 20272408

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1091, 1384, 2182, 2249, 4364, 4498, 8728, 8996, 14183, 17992, 28366, 56732, 113464, 188743, 377486, 754972, 1509944, 2453659, 4907318, 9814636, 19629272]

約数ペア:

[(1, 19629272), (2, 9814636), (4, 4907318), (8, 2453659), (13, 1509944), (26, 754972), (52, 377486), (104, 188743), (173, 113464), (346, 56732), (692, 28366), (1091, 17992), (1384, 14183), (2182, 8996), (2249, 8728), (4364, 4498)]