21117327

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{809}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 14341233

約数列:

[1, 3, 7, 11, 21, 33, 77, 113, 231, 339, 791, 809, 1243, 2373, 2427, 3729, 5663, 8701, 8899, 16989, 26103, 26697, 62293, 91417, 186879, 274251, 639919, 1005587, 1919757, 3016761, 7039109, 21117327]

約数ペア:

[(1, 21117327), (3, 7039109), (7, 3016761), (11, 1919757), (21, 1005587), (33, 639919), (77, 274251), (113, 186879), (231, 91417), (339, 62293), (791, 26697), (809, 26103), (1243, 16989), (2373, 8899), (2427, 8701), (3729, 5663)]