20902142

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{661}}^1$

素因数の和:923

約数の個数: 16

約数和(自身を含む): 31918992

約数和(自身を除く): 11016850

約数列:

[1, 2, 97, 163, 194, 326, 661, 1322, 15811, 31622, 64117, 107743, 128234, 215486, 10451071, 20902142]

約数ペア:

[(1, 20902142), (2, 10451071), (97, 215486), (163, 128234), (194, 107743), (326, 64117), (661, 31622), (1322, 15811)]