18219806

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1\times {\mathrm{1471}}^1$

素因数の和:2047

約数の個数: 16

約数和(自身を含む): 29887488

約数和(自身を除く): 11667682

約数列:

[1, 2, 11, 22, 563, 1126, 1471, 2942, 6193, 12386, 16181, 32362, 828173, 1656346, 9109903, 18219806]

約数ペア:

[(1, 18219806), (2, 9109903), (11, 1656346), (22, 828173), (563, 32362), (1126, 16181), (1471, 12386), (2942, 6193)]