21455313

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1801}}^1$

素因数の和:1853

約数の個数: 24

約数和(自身を含む): 32954976

約数和(自身を除く): 11499663

約数列:

[1, 3, 11, 19, 33, 57, 209, 361, 627, 1083, 1801, 3971, 5403, 11913, 19811, 34219, 59433, 102657, 376409, 650161, 1129227, 1950483, 7151771, 21455313]

約数ペア:

[(1, 21455313), (3, 7151771), (11, 1950483), (19, 1129227), (33, 650161), (57, 376409), (209, 102657), (361, 59433), (627, 34219), (1083, 19811), (1801, 11913), (3971, 5403)]