20172687986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{79231}}^1$

素因数の和:79478

約数の個数: 32

約数和(自身を含む): 33680572416

約数和(自身を除く): 13507884430

約数列:

[1, 2, 11, 22, 71, 142, 163, 326, 781, 1562, 1793, 3586, 11573, 23146, 79231, 127303, 158462, 254606, 871541, 1743082, 5625401, 11250802, 12914653, 25829306, 61879411, 123758822, 142061183, 284122366, 916940363, 1833880726, 10086343993, 20172687986]

約数ペア:

[(1, 20172687986), (2, 10086343993), (11, 1833880726), (22, 916940363), (71, 284122366), (142, 142061183), (163, 123758822), (326, 61879411), (781, 25829306), (1562, 12914653), (1793, 11250802), (3586, 5625401), (11573, 1743082), (23146, 871541), (79231, 254606), (127303, 158462)]