21037406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 35954688

約数和(自身を除く): 14917282

約数列:

[1, 2, 13, 26, 31, 43, 62, 86, 403, 559, 607, 806, 1118, 1214, 1333, 2666, 7891, 15782, 17329, 18817, 26101, 34658, 37634, 52202, 244621, 339313, 489242, 678626, 809131, 1618262, 10518703, 21037406]

約数ペア:

[(1, 21037406), (2, 10518703), (13, 1618262), (26, 809131), (31, 678626), (43, 489242), (62, 339313), (86, 244621), (403, 52202), (559, 37634), (607, 34658), (806, 26101), (1118, 18817), (1214, 17329), (1333, 15782), (2666, 7891)]