21042006

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1409}}^1$

素因数の和:1564

約数の個数: 32

約数和(自身を含む): 44668800

約数和(自身を除く): 23626794

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 131, 262, 393, 786, 1409, 2489, 2818, 4227, 4978, 7467, 8454, 14934, 26771, 53542, 80313, 160626, 184579, 369158, 553737, 1107474, 3507001, 7014002, 10521003, 21042006]

約数ペア:

[(1, 21042006), (2, 10521003), (3, 7014002), (6, 3507001), (19, 1107474), (38, 553737), (57, 369158), (114, 184579), (131, 160626), (262, 80313), (393, 53542), (786, 26771), (1409, 14934), (2489, 8454), (2818, 7467), (4227, 4978)]