12215763

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2815

約数の個数: 24

約数和(自身を含む): 20457216

約数和(自身を除く): 8241453

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 2731, 4473, 8193, 19117, 24579, 57351, 172053, 193901, 581703, 1357307, 1745109, 4071921, 12215763]

約数ペア:

[(1, 12215763), (3, 4071921), (7, 1745109), (9, 1357307), (21, 581703), (63, 193901), (71, 172053), (213, 57351), (497, 24579), (639, 19117), (1491, 8193), (2731, 4473)]