20213316

素因数分解:

$2^2\times 3^2\times {\mathrm{439}}^1\times {\mathrm{1279}}^1$

素因数の和:1728

約数の個数: 36

約数和(自身を含む): 51251200

約数和(自身を除く): 31037884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 439, 878, 1279, 1317, 1756, 2558, 2634, 3837, 3951, 5116, 5268, 7674, 7902, 11511, 15348, 15804, 23022, 46044, 561481, 1122962, 1684443, 2245924, 3368886, 5053329, 6737772, 10106658, 20213316]

約数ペア:

[(1, 20213316), (2, 10106658), (3, 6737772), (4, 5053329), (6, 3368886), (9, 2245924), (12, 1684443), (18, 1122962), (36, 561481), (439, 46044), (878, 23022), (1279, 15804), (1317, 15348), (1756, 11511), (2558, 7902), (2634, 7674), (3837, 5268), (3951, 5116)]