19720138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{6569}}^1$

素因数の和:6669

約数の個数: 16

約数和(自身を含む): 31536000

約数和(自身を除く): 11815862

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 6569, 13138, 124811, 249622, 518951, 1037902, 9860069, 19720138]

約数ペア:

[(1, 19720138), (2, 9860069), (19, 1037902), (38, 518951), (79, 249622), (158, 124811), (1501, 13138), (3002, 6569)]