213878511

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{28057}}^1$

素因数の和:28092

約数の個数: 36

約数和(自身を含む): 388098256

約数和(自身を除く): 174219745

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 7623, 28057, 84171, 196399, 252513, 308627, 589197, 925881, 1767591, 2160389, 2777643, 3394897, 6481167, 10184691, 19443501, 23764279, 30554073, 71292837, 213878511]

約数ペア:

[(1, 213878511), (3, 71292837), (7, 30554073), (9, 23764279), (11, 19443501), (21, 10184691), (33, 6481167), (63, 3394897), (77, 2777643), (99, 2160389), (121, 1767591), (231, 925881), (363, 589197), (693, 308627), (847, 252513), (1089, 196399), (2541, 84171), (7623, 28057)]