21010561

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:110

約数の個数: 36

約数和(自身を含む): 26958036

約数和(自身を除く): 5947475

約数列:

[1, 11, 13, 19, 37, 121, 143, 209, 247, 361, 407, 481, 703, 1573, 2299, 2717, 3971, 4477, 4693, 5291, 7733, 9139, 13357, 29887, 43681, 51623, 58201, 85063, 100529, 146927, 173641, 567853, 1105819, 1616197, 1910051, 21010561]

約数ペア:

[(1, 21010561), (11, 1910051), (13, 1616197), (19, 1105819), (37, 567853), (121, 173641), (143, 146927), (209, 100529), (247, 85063), (361, 58201), (407, 51623), (481, 43681), (703, 29887), (1573, 13357), (2299, 9139), (2717, 7733), (3971, 5291), (4477, 4693)]